Had a group of juvenile monsters in my tank for a few weeks. One umbee turned out to be dominant and from prior posts I believe it to be male. Colors were outstanding dominated tank had no fear. Aggression was getting high so I rehomed everyone else and did a waterchange while I was at it. Since then my umbee has been in his cave when I'm around. Only see him out when I first walk in room then he's gone to cave. I feed him when I know no one will be around and food is gone when I get back but I don't see him eat. Color is very faded. Is this normal and if so how long does it take to snap out of it? He's about 5-6" gorillus black