Ok my little lady "Nancy" (Pangasius Catfish-Irid shark) is just laying by her crypt, she lays there all day, under the plant, only coming out to feed. I have examined her and no external disease seems evident. She has one other irid shark tank mate (male, "Sid"). Who swims by her and stays by her sometimes but he doesn't bother her. There are two gold mystery snails and a male DT betta in the tank as well, but nothing bothers her. I can't figure out whether she is just stressed or what the hell is the deal, even if she is just stressed why? Temp-fine, ammonia-fine, ph- haven't tested yet but should be fine, I use proper water conditioning. ANy ideas??????????????