I think I'll put him in the 20H I just moved the pictus into the 26 so There is plenty of room in there now. My issue is that my 20 it my planted tank, would he bother them?
The males will have a little blue in their dorsal fin and a blunter head, thats what I have found. But if you have to catch it to move it, then vent it. It nice knowing for sure.