For a 20 gallon tank.. Would I just need one bag? I'm a relative noob to this, so is this good for freshwater fish? I just want to have the best!
149281
The amount you need depends on the dimensions of your tank, as well as your desired depth. Not all 20 gallon tanks have the same dimensions. Once you establish that, there are calculators online that will tell you how much sand you need. Go here: http://www.marinedepot.com/md_educationcenter_calculators_sand_bed_calculator.html and as far as if you can use this for freshwater, I'm not sure. This is labeled for marine (saltwater) tanks and as such, the bacteria in it would die off if you placed in a freshwater tank. This would cause a spike in ammonia, nitrites, then nitrates. I'd search for something labeled for freshwater use. The amount you need depends on the dimensions of your tank, as well as your desired depth. Not all 20 gallon tanks have the same dimensions. Once you establish that, there are calculators online that will tell you how much sand you need. Go here: http://www.marinedepot.com/md_educationcenter_calculators_sand_bed_calculator.html and as far as if you can use this for freshwater, I'm not sure. This is labeled for marine (saltwater) tanks and as such, the bacteria in it would die off if you placed in a freshwater tank. This would cause a spike in ammonia, nitrites, then nitrates. I'd... » Read More The amount you need depends on the dimensions of your tank, as well as your desired depth. Not all 20 gallon tanks have the same dimensions. Once you establish that, there are calculators online that will tell you how much sand you need. Go here: http://www.marinedepot.com/md_educationcenter_calculators_sand_bed_calculator.html and as far as if you can use this for freshwater, I'm not sure. This is labeled for marine (saltwater) tanks and as such, the bacteria in it would die off if you placed in a freshwater tank. This would cause a spike in ammonia, nitrites, then nitrates. I'd search for something labeled for freshwater use. « Show Less
149282
It depends on how deep of a sand bed you are looking for. One pound per gallon should give you about an inch. Personally for me, that is perfect.
149283
This is for salt water - I would not recommend you use it for freshwater. I used to have a freshwater tank and I loved using black substrate (check out Amano's tanks) for the best looking tank - and I found Seachem Black Flourite to be excellent: I would get a 20LB bag to start, you'll want more if you are going to have live plants (highly recommend doing that...anubias is one of the best)...have fun!
149284
Not suitable for freshwater.. Perhaps reading this might help you.. http://www.wikihow.com/Set-Up-a-Freshwater-Aquarium
149285
I used this for my 20 gallon reef tank and it was just the right amount. However, this product is for salt water tanks.
568421
Hi again. I responded on your later question, but I'll comment here as well. If you go to the comments under "Stacey" review, (I think it is the one now rated most helpful critical review) in the later comments there are some good exchanges Stacey and myself had with another person, "Ann" looking for advice on starting over after losing a fish. My review is the presently rated most helpful positive so you will get both views. Stacey has some very good advice on safely cycling with the fish in the tank in those later comments I mentioned, and I gave my method for safely sterilizing the tank without going nuts. Good Luck. Hi again. I responded on your later question, but I'll comment here as well. If you go to the comments under "Stacey" review, (I think it is the one now rated most helpful critical review) in the later comments there are some good exchanges Stacey and myself had with another person, "Ann" looking for advice on starting over after losing a fish. My review is the presently rated most helpful positive so you will get both views. Stacey has some very good advice on safely cycling with the fish in the tank in those later comments I mentioned, and I gave my method for safely... » Read More Hi again. I responded on your later question, but I'll comment here as well. If you go to the comments under "Stacey" review, (I think it is the one now rated most helpful critical review) in the later comments there are some good exchanges Stacey and myself had with another person, "Ann" looking for advice on starting over after losing a fish. My review is the presently rated most helpful positive so you will get both views. Stacey has some very good advice on safely cycling with the fish in the tank in those later comments I mentioned, and I gave my method for safely sterilizing the tank without going nuts. Good Luck. « Show Less
1904365
I use mine as a secondary filter on my 55 gallon tank. 1 angelfish, 1 plecostamus, 4 clown loaches and 6 cherry barbs. I don't think I would try it alone on anything over 20 gallons.
772385
Biological media doesn't go by gallons, I understand it seems like it should, but if your tank is cycled or in the process of cycling this just makes a safe place for that bacteria to live, you'd be fine with one box due to the super high surface area of these rings, but you can always add more if you have space for them, your tank being fully cycled is what really matters.
81299
I realize you are looking to keep turtles but the absolute beauty of this very large canister filter, is you can fill it with whatever you want to. It really depends on whatever you are keeping. Since I keep only very large fancy goldfish in a 125 gallon tank (messy critters that they are) I am using in the top basket: Fluval Universal Filter Media Bags - one filled with ammonia remover and another with activated carbon. The second basket: Seachem Purigen in a Seachem Filter Media bag (very fine mesh able to contain the Purigen) and in the 3rd basket: Seachem Matrix Bio Media in the bottom canister covered with filter pad cut to fit the circle shape of the basket. Hope this helps somewhat! I realize you are looking to keep turtles but the absolute beauty of this very large canister filter, is you can fill it with whatever you want to. It really depends on whatever you are keeping. Since I keep only very large fancy goldfish in a 125 gallon tank (messy critters that they are) I am using in the top basket: Fluval Universal Filter Media Bags - one filled with ammonia remover and another with activated carbon. The second basket: Seachem Purigen in a Seachem Filter Media bag (very fine mesh able to contain the Purigen) and in the 3rd basket: Seachem Matrix Bio Media in the bottom... » Read More I realize you are looking to keep turtles but the absolute beauty of this very large canister filter, is you can fill it with whatever you want to. It really depends on whatever you are keeping. Since I keep only very large fancy goldfish in a 125 gallon tank (messy critters that they are) I am using in the top basket: Fluval Universal Filter Media Bags - one filled with ammonia remover and another with activated carbon. The second basket: Seachem Purigen in a Seachem Filter Media bag (very fine mesh able to contain the Purigen) and in the 3rd basket: Seachem Matrix Bio Media in the bottom canister covered with filter pad cut to fit the circle shape of the basket. Hope this helps somewhat! « Show Less
479948
I got the same thing, small bag with rubber-ish fish and few implements. Anyone has idea what that's for? It doesn't seem that it's needed for assembling.
749428
Think so....I have a 10 gallon tank with 3 medium fish and it works fine but for a 20 gallon tank you should get the right sized filter to keep the fish healthy.
768679
Personally I think it may be too much for that size tank. It would filter just fine and do a great job, my only reservation would be current. It would be pretty turbulent in there and the intake might suck in some fish in a heavily stocked tank.
2130246
that all depends on what filter you have, for me i have a turtle and a 60gallon tank, so i use about 100grams on a fluval405 , and it lasts about two months with clear odorless water. your situation might be different , i think this should be more than enough if only for regular fish.
1642185
I have a betta in a 5.5 gallon tank, and honestly this is the best bang for your buck. I tried going the cheap route before i knew much, and got just the ammonia kit. But later just ended up buying the whole thing. This is cheaper in the long run compared to some like 5 $ kit that has 15 strips.
913626
yes, one bag is plenty for this unit. You have to screw the meter/top off the top of the tank; it just screws/twists off like any bolt or cap. Then take out the long tube from the tank. The old resin will be kind of mushy and slimy mixed with water. I just dumped it into plastic bag that I had cut some small holes in the bottom to let the water out and the old resin stayed in the bag. Then rinse out the tank till its clean. To put the new resin in, I used a large funnel. If you can have two people it is better; one to hold and shake the funnel and one to pour the resin in. It is kind of sticky, but pours well. If you don't have a funnel you can make one by rolling up some heavy paper. It is almost impossible to pour the new resin into the hole without a funnel. You need to make sure you get the tube back into the tank before pouring in the new resin and you should tape the top of the tube so you don't get any resin in it while pouring it in. Good luck!
179207
It's a really nice little tank. Any fish will do great but it is very small. I think if you did somethinglike a neon or molly you could have up to 4 or 5.
344618
Yes I believe it's flow is too much for a 20 gallon aquarium. I have one on a 160 gal tank and it seems to be okay. They are not designed for that large of a tank but because of the amount of fish I have in it it's good.
839784
It probably could be used for that. I have mine in a 20 gallon freshwater tank. Its very powerful and the waterflow is a little strong. Good filter though would definitely recommend.
751647
If its gonna stay mostly stationary, you should get a 20 gallon or so. You can still get one that size in the same price range
41817
Sorry, I'm using a regular 20lb tank and I have yet to run out. I've had it for quite a while.
690996
I had one in a 20L and thought it provided good flow for that size. I have also used it for a 10g QT tank as the only flow, it works well for that purpose as well. Depending on the amount of flow you need in the 20L and the amount of rocks / etc in there, you may need more flow than just one koralia 425.