I have a 55 gal. Tank. Any suggestions? But, before you respond, FYI...my parameters are all okay: Salinity 1.23; Ammonia okay, etc. My tank is a year old. I had a couple damsels, 10 crabs, and a Yellow Tang in there. I gave away the Damsels.
I like Tangs, 6 line wrasse, Flame Angel...