I have a 56 gallon tall tank I have six Raphael catfish 3to 4 inches, two feather fin catfish about 6 inches and two pineapple plecos 7 inch and 5 inch, a 7 inch callichtys callichtys and lots ramhorn snail, two large waters sprites and several large java fern and 3 hob filters two ac 70 with large peace lilies and ac 50 with very large pothos and eheim 2217 canister filter and looking one more mis size fish