So I have a 55 gallon display tank and I’ve been using a mechanical filter, changing it often. I want to build a sump for my tank and I have a 20 gallon tank that’s been sitting around. Could I use the 20 gal for my sump? Also is there any suggestions on building my sump and what should go in it? Still figuring this out.
Thank you in advance!
Thank you in advance!