X24;1049674; said:really a matter of opinion. i mean you could hook up huge pool sand filters to it, but realistically the best would be a nice sized wet dry/sump filter....but for a beginner thats a little tricky, so you may want to just got with 2 penquin 400's since they are pretty cheap right now.
Bderick67;1049794; said:I have had several 55-85 gallon tanks with just a single Emp 400. And with the exception of a 65g red belly piranha tank I've never had a problem with water params. What are you planning on stock your 55g with?