Should i use an under gravel pilter on my 55 gallon tank?
You could, but it shouldn’t be your only filter. Hang-ons or canisters are a lot more efficient at removing solids, but an undergravel does a better job with biological filtration. I use both on deep tanks or ones with “messy” fish. One tip for you if you use one – get a reversible flow powerhead to run it. This will move more water and provide better filtration. If you run the UG in the traditional manner (water is pulled down through the gravel and up the tubes) you end up with a lot of debris accumulated under the filter plate. This can block the flow from all areas, and if areas start to become anaerobic, you can get hydrogen sulfide gas building up underneath (and this is bad news for your fish). So if done in this direction, you should pull up the filter plate every few months to clean under it. I’ve also seen it suggested to remove the tube and use the siphon hose to clean underneath. But with a reversible flow, water is pulled down the tube and blown up through the gravel, so t
