My male leo seems depressed and not in the "I feel like crying" way either. I bought a new tank for my trio last week and transferred them over. Everything is relatively in the same place but the tank is larger. The temps are the same however. I also noticed last week all three of the were highly irritable towards each other with a lot of nipping going on. I suspect they might have been breeding but I was home only a little last week and didn't spend a lot of time observing them except when I fed. He's not lethargic or anything and wonders around the perimeter of the tank like he's trying to find a way out (he's an escape artist) then settles in a corner to watch everyone. Doesn't sleep a lot and he is bright eyed and notices things going on. He responds to me as usual, not particularly interested in being held or bothered but he won't eat for the last few days. I dangle a grouchy cricket in front of him and even his favorite waxworms and he just seems disinterested. He's even lost interest in the girls, not that I can blame him after their attitudes last week. In all, he just seems depressed. Any theories?