I can imagine there is a sump calculator out there somewhere, but IME it depends on what type and size equipment you plan on running, complexity of plumbing, and if a refugium or frag area is wanted
Hi Everyone, I have been reefing for about 20 years and have lived in DC since 2013. Mostly, I keep softies, leathers, clams, and anemones. Excited to be part of the group!
-JTR