One of my 2 pictus catfish I have looks pregnant and has been hiding in a small cave created by the way my driftwood lays. I just noticed today when I feed them when it came out to eat its stomach is big, but the rest of its body looks normal, my other one is the smaller of the 2 and is doing fine, not hiding or anything. I have researched and it says that this fish rarely have ever been recorded breeding in a tank. The Pictus's are only a week old so could it just be sick with something?