Claire Corlett

Fish Food, Fish Tanks, and More
HOW TO Start an aquarium in 8 ways

HOW TO Start an aquarium in 8 ways

You know what’s really crazy is just nine months ago This building used to be my old garage and since then we’ve accomplished so much including starting up so many new Aquariums and it kind of inspired me to show you guys eight different ways You can start up your aquarium now when I say start up your own Aquarium what I really mean is how to get it cycled in order to be able to support life like your plants as well as your fish and Making it safe condition, so they clearly don’t die anything organic in your aquarium would Plants the fish everything in there is creating waste ammonia Ammonia is deadly and we know it too much of it or even just a little amount of it can potentially Kill off your fish now we know one thing we all hear about this good bacteria, and that’s true But this good bacteria exists everywhere just not in numbers able to support life like in an aquarium So what we need to do is Harbor as much of that good bacteria in our filtration systems and amongst all of the surfaces in our aquariums in numbers Able to support the amount of waste that our aquariums are creating to simplify the nitrogen cycle, though All of this waste we’re talking about is creating Ammonia there’s a bacteria called nitrous enormous. That’s going to oxidize that ammonia into something. That’s less deadly called nitrite nitrobacter oxidizes that nitrite into nitrate nitrate being entirely less deadly than the previous two and Nitrate we know is used by plants for example. However we a lot of times We measure nitrates in order to know when we’re supposed to be doing our water changes, but a lot of the times That’s not a good indicator as to when you should do your water changes as opposed to How many dissolved organics are in your water column? But that’s not really the topic of today’s video all we want to do right now is How can we get as much of this bacteria? Into our aquariums in numbers that are going to be able to support the life within it so like I said These bacteria exist every we’re simply just not numbers able to support life So why can’t we just set up an aquarium and wait until there’s enough bacteria in it in order to add fish? And that’s actually one of the methods of starting up a new aquarium is called the fish list cycle basically we set up a new aquarium and cross our fingers for the next sex six weeks and Hope that bacteria established within the aquarium and numbers able to support the fish We’re going to be adding now regardless of the method that I’m going to be teaching you today You want to start off with adding your fish in slowly? we’re not taking a bunch of fish and adding them in all at once or you’re going to have a bacterial bloom and probably an ammonia spike however I will also show you how you can take a ton of fish and add them in all at once But that’s probably going to be due to the fact that you already have some other established aquariums More on this in a moment with all of these different types of cycles. We’re monitoring the water closely we’re testing for ammonia We’re testing for nitrite and we’re testing for Nitrate with the fish list cycle though this can be one of the most Deceiving because all of these things don’t appear in an aquarium that doesn’t have any waste present of course Sometimes you might But this is one of the worst ways you could cycle off your aquarium is the fish list cycle only due to the fact that You might have a completely sterile environment not enough bacteria is present you waited your six weeks You add in your fish and everything starts dying so in my opinion you should stay away from that method But what if you use the fishless cycling method and simply add in bacteria in a bottle and you guys know though? There’s so many companies out there that are advocating they have instant Aquariums where you could just take this bacteria in a bottle dump it into your Aquarium and within a day or two you can fully stock your aquarium in my opinion. That’s a bit iffy as well There’s so much reports out there that you know a lot of these bacterias in a bottles don’t work in my opinion They kind of do, but it’s not something I solely depend on ever and it actually takes a while for your fish to actually produce enough waste to get to that bacteria for It to consume, so should you depend on that well you can add it bacteria in a bottle along with other methods? But in opinion the fishless cycle, or just adding bacteria in the bottle is not something I do I always got had in these disclaimers Some of these methods will work for others I’m just explaining to you guys What has worked for me discus are always out until I start shining the light tom is sitting in front of them of course You know when it comes to this bacteria in a bottle you still want to monitor your parameters the same as any other Aquarium or what we’re looking for ammonia. We’re looking for nitrite. We’re looking for nitrate We want to make sure there’s no ammonia We want to make sure there’s no nitrite And there’s only a reading of nitrate and this can potentially take up to six weeks during this time You don’t want to fully stock your aquarium, or you’re gonna end up with a bunch of dead floating fish most likely all right So the fishless cycle isn’t that great? What if we just add in fish right away? Well, that’s a method as well It’s called the feeder fish cycle, or you know Insignificant fish cycle and in my opinion. This is the cruelest method of cycling an aquarium I highly suggest against it, but it works I mean when you add in a few tiny little comets or goldfish into the aquarium these guys are Producing ammonia in the aquarium and over the course of six weeks you’re gonna cycle your tank the bacteria are going to have a food source they’re gonna populate your filtration your Your substrate and so forth in numbers able to support that many fish that are in the aquarium all during this time though Your goldfish or feeder fish have to survive this ammonia cycle which in my opinion is cruel and again It’s not something I have done, but if you want to use organic materials The next method is definitely your choice in the previous method We talked about adding fish to produce waste in the aquarium to feed the bacteria that we need to cultivate What we’re all we’re really Doing is kind of just adding in something that’s going to produce waste into the tank so why not take a piece of raw shrimp Drop that into the aquarium and let that produce the waste in the ammonia as it decomposes and rots in the bacteria attack it it’s going to produce lots of ammonia in the Aquarium and the bacteria will have a food source and have the ability to populate your aquarium So instead of using feeder fish which in my opinion is cruel Just drop in some organic matter like that into the tank and let that do the exact same job at the same time Maybe you take that but Bob bacteria in a bottle dump that into the tank with its new food source of a shrimp or two and Over the course of a week or so monitor ammonia levels and see if that bacteria two bottles actually working for you This is a much faster much safer method and of course. It’s not that cruel now We’re getting into the ways that I cycle aquariums so with adding that shrimp into your aquarium all we’re kind of looking to do is Create ammonia within the aquarium and the answer is kind of yes So why can’t we just add ammonia directly to the fish tank and the answer to that is also yes But this is one of the most dangerous and deadly methods a cycling aquarium. Simply because most people overdose we could take some household cleaner Ammonia this is old country. It’s widely rip two reputable reputa Rep YouTube Reputable in the hobby to be fish safe. I’ve used it a ton of times. I do not use this to cycle aquariums I use this to actually keep filtration systems alive when I shut down tanks I’ll explain that in a minute But when it comes to selecting ammonia not everybody’s gonna have access to the same brand what we’re looking to do is shake it up Shake it up. Open it We’re looking to see if there’s any Foaming at the top a few bubbles is normal But if there is foaming that means there’s some other agents within the ammonia that we don’t want we just want ammonia and water That’s it now a capful per 100 gallons is typically what’s you’ve been useful for me? but we’re still going to have to monitor the nitrogen cycle with our test kits looking for that ammonia nitrate and nitrate of Course how much you’re going to need to add and how often is going to vary depending on the size of your aquarium But in my opinion a capful every two weeks Should be sufficient you should only have to do this twice if you add a capful of this ammonia into one of my tanks I’d kill my fish That’s too much ammonia all at once however. You can heavily Cycle an aquarium depending on how much ammonia you use my my in my opinion you should take a bucket you should add your filtration usually you’ll have a Canister filter or hang on the back filter or even a sponge filter handy You can put that in a bucket, and you could cycle that right in there. We’re cycling the filtration systems We’re not cycling the water again bacteria needs a surface to live on it’s not a free swimming organism No even though I would advise against using that method because simply put Most people overdose or don’t doze enough where you know it’s just too touchy in my opinion what I use it for is this? you guys know that I’m going to be risque peeing the two thousand gallon aquarium shortly and for at least two to three days I Have to take the fish out in order to do so these fish are going to be moved into another hundred gallon aquarium Temporarily which will be running another filtration system that I’m already cycling or that it’s actually already cycled and ready to go But in the meantime what about the filtration system that’s plumbed into the 2000 well for the fluid ice filter I’m gonna be able to add a cap full of this to feed the bacteria and keep it alive for the canister filtration below I’ll be able to run this in recirculation mode, which means that it’s just circulating the water within it I’ll pop the cap off and I will add a capful and that should keep this alive as well in fact I probably won’t even have to do a capful for each. Maybe like a half a cap or something like that I’ll do some calculations, and I’ll go from there But this is why I have ammonia is to keep filtrations alive in times like this because if I shut these filtration systems down Bacteria starts to die right away you have around 24 hours To kind of recover from a power outage like that or your filtration systems being without a food source, but you know after that the die-off is Extreme and that last method is how I cycle an aquarium with a piece of raw shrimp bacteria in a bottle if you if you want to grab it and I cycle it naturally that way of course once again. We’re monitoring levels the entire time. We’re looking for the spikes in ammonia That’s going to happen, but that’s eventually going to come down nitrate starts to build up But the neck starts to come down, and then of course nitrate at the end of the cycle And then you should only see nitrate moving forward and at that point that’s when you can stalk safely your aquarium However, I have a ton of fish tanks here Which means I have a ton of cycled aquariums and a ton of cycled media now media is the material we put in our filtration? System that allows the bacteria to grow on now I’ve shown you guys this method many times before, but let’s take another look This is part of the filtration system to the 2000 gallon aquarium. It’s a fluid ice filter and this media Here is a fluidized media. We’re not really going to get into the methods of filtration I’ve done that so many times in the past however what I want to point out. Here is what’s on the bottom? This is a ton of Ceramic media that is cycled at the bottom at any given point I can grab a bunch of this and toss it into a new Filter of course we still had more filtration here, however. I just want to point out the fact that I always have additional media running within my aquariums right of course everybody’s got a Hundred gallon fluidized filtration system of course you don’t but what I’m talking about is perhaps instead of just relying on the filtration that you have you take a Pantyhose and you cut the leg off and you fill it with additional media And you hide it in your aquarium somewhere so that at some point when you need a hospital tank or a quarantine tank or whatever The case might be or you just want to set up a new tank rather quickly you have established Media already that still doesn’t mean you can go ahead and pile a ton of fish into your aquariums But this is exactly what I do in order to be able to stop them right away is have all of that media already Established it’s not going to be enough bacteria in numbers and able to support whatever life I throw at it, but it’s putting me off to a great start And I don’t really have to worry about the nitrogen cycle and that six-week waiting period I can start stocking Right away and have no fish deaths I do a number of things in order to stock 50 60 fish at once and we’re gonna get to that at the end However, what if you don’t have or even if you don’t want to have a bag of media sitting in your aquarium Or you know have the money to have additional media. Just cycling wherever when you never know if you might not use it or not Well one thing most of you have is substrate you see the bacteria within our aquariums are not free-floating They need to live on a surface They live on your decorations, and they live on your substrate now your substrate has a ridiculous amount of surface area so if you don’t have cycled media go ahead and take a couple scoops of substrate from a heavily established aquarium toss that into a pantyhose or you know some sort of a mesh bag and Throw that into your filtration system And it’s essentially the same thing as having cycled media on hand that was seven ways of starting up your aquariums the last one is actually one of the oldest methods And I know a lot of you guys have heard about the word maulana m. UL m. This is basically detritus uneaten food Bacteria all kinds of goat that collects in your filter Let me show you what I mean you’re gonna have to come over here to see this Now what I’m about to show you guys I call liquid gold The next time you’re doing a water change or the next time you’re doing maintenance on your filtration system Or if you’re starting up a new aquarium, and you have a friend that has an established aquarium Tell them hey next time you’re cleaning out your filters. Can I have? the disgusting mess it creates Step 1 get some aquarium water you don’t want to have water from your tap or anything that has Chlorine in or chloramines you also kind of want it to be the same temperature because at the end of the day bacteria is also an Organism that can die from conditions like that Now we all have canister filters hang on the back filters all different types of filtration that has some sort of a pre-filter you know the stuff that polishes the water whether it’s a sponge or Some forts or form of poly filter or whatever the case might be we all have something in my case I’ve got some sponges here I Could use a bit of a scrub so what I’m gonna. Do here is take this and Kind of rinse it off In this bucket here squeezing it you know I’m not going to run this under hot water I never clean my sponges in fresh water I always clean them in tank water because this is also covered in bacteria, but what I’m trying to do Here is get off and this isn’t all that bad actually, but what I’m looking to do is to rinse off some of the bacteria some of the detritus uneaten foods And so forth and what’s happening in this little concoction now is there’s a bunch of bacteria with lots of food source what we’re gonna Do with this is your guessed it. We’re going to dump this into our Aquarians of course. I know what you’re thinking I don’t want to dump this into my tank. It’s gonna make it all cloudy and gross of course It is give it a few days, and they’ll be fine though personally I prefer to dump it into my filtration system because that is my life support system that’s where I want the majority of my bacteria to Establish and be present in the highest numbers even still we’re still gonna need to water monitor water parameters But at this point we can still slowly start to add fish so of course you could pick and choose What works best for you and what you have access to with all of these materials that I’ve shown you However the most important thing is to stock your aquariums extremely slowly It’s not a race aquariums a nice aquarium could take months to in order to establish But if you’re like me and you want your aquariums to be established almost immediately I start off with Already cycled media and what I mean by already cycle media is I have enough biological Media to fully stop my filtration system So it’s like I’m taking it off one aquarium and putting it on another, and I just did a hundred percent water change I’ll also take mum What I have just shown you and add that to the aquarium system so the bacteria and all of that detritus can establish throughout the aquarium itself Then I can essentially fully stock the aquarium as long as I monitor the water parameters Closely as well as the fishes activity and do my water changes so of course. This is only eight methods that you could use to Start your new aquarium or establish one and add it to your collection However, there’s multiple other ways you could do so and I know many people what I actually want to hear is how did you start? Your first aquarium how did you cycle it? Did you know anything? I know the presence of the internet and YouTube and so many Informational sources are available to how but back when I get in the hobby It was kind of like you’re on your own So I had a lot of a big learning curve to say the least so I kind of wanted to bring this to focus And do these types of videos here and there I do want to do some things that are some beginner type videos perhaps we’ll dive into the nitrogen cycle, and I’ll talk about bacteria and Because at the end of the day bacteria is your most important organism in your aquarium, I also want to talk about their preferred conditions You know I just kind of want to dive back into making more of you a Successful hobbyist by potentially emulating or at least getting some ideas on how I’m successful with my hobby Anyways, if you have any questions or comments or you want to share how you started your first aquarium? Let me know in the comments section below. I’m not here to make fun I don’t think anybody else is here, but your story could potentially save somebody else’s fish Full disclosure. I’m still sick. That’s why I stay on sale like this I got a pounding headache not thinking clearly and I kind of just winged this video But I’ve been wanting to do it for quite a while now, so I figured hey How about Tuesday afternoon when this video needs to be out in an hour so? If I missed any information or you want me to do something like this again with a clear head, please Let me know in the comment section below

100 comments on “HOW TO Start an aquarium in 8 ways

  1. This video totally misrepresents the fishless cycle. A fishless cycle does not mean you just run an empty tank and hope for the best. A fishless cycle is where you add ammonia to simulate fish in the tank, without adding fish – at the end the filter is fully cycled and full of bacteria, and you can fully stock the tank safely.

  2. So what happens when you have a cycled tank and need to change the filter cartridge do you have to start all over again?

  3. I kept some fresh(ish) water change water aside for quick cycling an emergency auxiliary biofilter. Seems to have worked so far,

  4. you have nice backgrounds to it.. the tree barks. is that something we can buy or you make this.. nice tanks btw

  5. I've got into hobby when I was 7 years old(now I'm 26). The first tank was 10 liters(2,6 gallons I guess) with a bunch of guppy fish, at that time even though it was my fathers idea, cause he was into hobby himself, I didn't knew anything bout cycling aquarium. All of my first fish died in a few months. but than I've got another, along with a "smart book for dummies", and that where my real hobby began. Through this years I kept many different fishes, snails, shrimps and even frogs. =)

  6. Experience is being taken in to knowledge Mr. DIY King, thank you for a very explained video 😎👍, hope the family is doing well, from Houston Texas USA 👍.

  7. I've also heard that people actually introduce ammonia itself into the water – fishless of course…and let that cycle the water.

  8. Hey Joey, I just finished setting up a 5.5 gallon tank for a future betta!. I used my water conditioner and added in a Bacterial supplement. I know there's mixed opinions when it comes to them, but I was wondering if adding in food with the supplement would help the process. I read people say they have used fish flakes, but you said using raw shrimp works. I'm new to this so I'm really freaking out about the cycle lol

  9. I usually use stress coat and liquid bacteria and do daily 20 to 50 per cent water changes (or in every 2 days depending on the ammonia) without touching the polishers or sponges for 2 weeks. Never lost a fish due to the cycling issues.

  10. I didn't… My first aquarium was a five gallon with a comet and two barbs (i was ten give me a little slack) but the comet is in a pond now so I got lucky!

  11. I didn’t cycle my first aquarium, I was two or three. And it was like a half gallon with one dwarf African water frog.

  12. So informative man I'm taking on my biggest venture with this 1200g and was looking for ways to expedite the N process and this was very helpful. Thanks a bunch

  13. I don't know much about how sand filters work, but in recirculation mode is it a closed system? What about gas exchange?

  14. I always just feed the tank as I normally would so ammonia builds up
    That’s what was taught to me and I have never had a problem with it
    I love all of these ideas though

  15. Apparently, nitrosomonas and nitrobacter are not the strains that thrive in aquarium. Instead, it should be nitrospira and nitrosospira

  16. I messed mine up but it seems to be doing fine. I got bacteria starter instead of dechlorinator (cause I picked up the wrong one and didn't realize it til… well, just now) let it sit for a day, set up my live plants, added ammonia remover and then 20 fish. It's been a little over a month and they are all still alive. All except one fish and two shrimp. I have reasons to believe that the shrimp were eaten so I'm going with just one loss. Idk if I did anything wrong since they're all still doing well or if I just think they're doing well and need to change something

  17. I used fish food in my 5gal and it did the job, but not without a bacteria bloom bc I probably used too much haha
    Lots of plants and very few fish and snails keep it in check 👌🏻

  18. I used to use fish tank water back in the day which isnt great, great tips here especially the dirty water method. Great tip not relying on cycling bottles too. Awesome video.

  19. I just added a drop or 2 of ammonia in my 29 gallon until I got an ammonia reading then added just 1 drop a day until I got nitrite then nitrates.

  20. You look and sound like you've just come down the wrong side of a cocaine high. Get a grip man and less of the theatrics!

  21. I don't know what to do. If anyone can help that would be greatly appreciated

    Basically I have just started up my new tank about 3 days ago and I have tested my water but there is tons of ammonia in it. Do I carry on cycling my tank or do I do water changes?

  22. nice video. my first aquarium is just 4 weeks and 10 ga, and 7 guppies. I suffering learning curve of fish tanks, with a big spike of ammonia and tring to save my guppies……i need it your video 4 weeks ago…..but i have a 1 gal that i am preparing and i hope i will do it in the correct way. Thanks

  23. I currently have a 1 gallon Betta tank and I'm getting ready to move up to a 6.8 gallon. I plan on using my Betta water and filter gunk to kick start the tank. How long do you think is should take to get my tank to cycle

  24. Thanks for saying putting mulm into your aquarium or filter is ok, i had heard this but thought I'm surely not understanding this correctly. I have a 65 tank that is not fully cycled and I'm have a hard time. I have kinda did this backwards, get the aquarium then the fish and after I killed several I knew something was wrong. I took chlorine out if the water and put bacteria into the water but apparently didn't wait long enough. Im trying to cycle my tank now with 15 mbuna in it and keep them alive at the same time. I have thrown my mulm out or down the drain without realizing it could be an answer to my prayers! So i'm going to clean my sponges in my fluval and simply fill my fluval back up with the fish water i cleaned them in. Is this the right thing to do? I know it will shoot brown water into the aquarium when i start it up but thats good too, right? Anyway thanks for the information i really like listening to you, even sick you are more energetic than me ! lol

  25. I have been using the fish method. Getting small fish and putting them in there for a month or so. I don't think it is cruel myself ammonia is only harmful in large cases the small fish don't produce enough to hurt themselves. By the the time they do the aquarium is already cycled. I honestly did not know about the other methods until recently. I used danios for this and just keep them there for rest of the tanks life. And they are usually the elders the ones that stay and live the longest no matter how many times I change the tank up I always leave them there.

  26. If you have another fish, can you use some of the other fishes water to cycle? I dont think so, but maybe

  27. Fish in cycle with zebra danios 1 per 10 gallons worked just fine for me and my danios are alive and thriving 1 year later, check water parameters weekly until you get 0 ammonia and 0 nitrite and a little nitrate and your good

  28. I just got a 60 gal and I'm using over the back filtration. I have a 5 gal tank already set up with neon tetras and skirt tetras in it. It's also using over the back filter. If I'm listening correctly I just have to clean the filter from the 5 gal in a bucket of its tank water then just dump it in?

  29. I have k1 cycling in a bucket an every week I wash out my sponges and filter pads in the water to get it ready for my new tank

  30. I just set up my 125 gallon fish tank I had to get this tank cause for one my fish are outgrowing my 75 gallon and for two who don’t want a big tank but anyways I was wondering how long should I cycle my 125 I’m doing the bacteria in a bottle and the raw shrimp thanks Joey👍 Any information from anyone would really help Oh also can I put both my Arowana and my clownknife in this tank or one at a time after the cycle in 5 days?

  31. I just take some bioballs from my friend aquarium and some substrate with 5 minnow I actually didnt know yet they can die but they still doing great!

    For my second same I have some media on my filter cause I know I want another so I put it on the new tank with some subtrate and fill it with my water change wait some days and and fish. They was more active than the 5 first so yeah I have more media on my filters cause want another bigger tank😂

  32. Hope you see this… you have been a life saver literally baught a flowerhorn and then after 24 hours the huge tank leaked … had to take it back poor fish in a bucket and lost all the water …managed to save the filter … but he still didnt seem right … watch u all the time and found this video and it got to liquid gold and inwas like dam didnt think… so ran to work and squeezed the sump filter sponge into a bucket and took it home…now hes loads better!!! Massive thank you… dont know why I didn't think of this… probably panic lol

  33. I'm a newbie to the fish hobby and I killed off my first batch of fish with too much too fast new tank syndrome. So now I'm taking it a lot slower with a dirted and planted tank. I've been cycling the tank for over a month now and adding plants, but the one question I had was how do I know if I have enough good bacteria? You answered it here. I didn't realize that the bacteria need to eat too. Duh! Thank you for the info DIY!

  34. Lol I just dumped a bunch of my home bred guppies and kept it running for a day then added two oscars on the next day simple as that😂

  35. I'm cycling my new tank but not using ammonia I've brought something from the aquatic store to cycle tank now I'm gonna leave it 7 weeks then test my water


    Can I buy all ready cycled media online somehow?

    And if I were to put goldfish in my tank to cycle would that work out ok? (or are there better fish to cycle with)

  37. I just started my 5 gallon aquarium on 7-19-19 buy setting up my tank, throwing that bacteria in a bottle that i used double then described, threw in some crushed fish flakes and dechlorinator. Its 7-22-19 water is cloudy and im praying itll cycle by next week because theres this betta fish im eyeing on ebay that i can locally pick up and hopefully i can get it soon.

  38. the bacteria in the bottle method really depends a lot on the manufacturer, you really need Nitrosomonas, that's the one that gets rid of the ammonia, nitrospira helps too. As far as I know, nitrobacter is useless, yet some of the manufacturers of ready made cycling bacteria are just nitrobacter…

  39. I’m upgrading to used 125g tank and it’s still running with 1big fish in it and Fx6 filter .
    I have a 75g full with Cichlids and I have a canister & sponge as well.
    I’m concerned to transfer my fish
    After I’ll set the. New tank !
    Do I need to cycle with new or old tank water And run it with filters,decor,stones every thing that may have bacteria to cycle
    Or I’m making a big mistake!
    Please advise thanks.

  40. You’re the best. Great easy understated information. Let me know where you live and I’ll bring over a pot of a mamás chicken soup.

  41. I have a 30 litre tank that's now standing for a week and I addeb benificial bacteria 5 days ago and I keep the tank at about 26-27 degrees celcius. Would I'd be cycled enough for a shrimp tank?

  42. I currently have cloudy water in my tank, my tank is not fully cycled but it was doing fine the level of ammonia wasn't safe but it is pretty close to safe the cloudy water happened right after using the product API Ammo Lock I did a 50% water change and a 90% the next day and still water is very cloudy I had to take out my goldfish and put it in a separate aquarium, don't know what to do any help will be appreciated thanks

  43. I always use spring water to start my tanks and I use lots of live plants. I only have a 10 gallon and a 3 gallon but both have been fish in cycles after putting in bacteria and leaving the tank alone for 24 hours. Fish in mainly for these two I was rescuing them and needed them out of their current conditions asap.

  44. I have a 240 liter tank and I just put media from a cycled tank and just added my fish after 24 hours, hope they survive.

  45. very good video i have just set up another aquarium i started mine with some fluval cycle on the 10/10/19 and on the 11/10/19 i put in a small amount of fish flake and i will test my water every few days i am using an aquael ultra max 1000 and it filters 1000LT per hour as we say in the united kingdom i am from across the pond love all you videos happy fish keeping

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