new to plecos not to fw fish. I picked up two wc l091's the other day. ive read up on diet and they are eating from what I can tell and I've caught them out in the open wiggling around once or twice when its dark in the tank. so i'm not worried about that as they are obviously still alive (and I have no reason to suspect they are sick, just to be clear), but with them hiding all the time behind my sponge and decorations in my quarantine tank how do I check on them to make sure that they are healthy and everything?