I have a catfish, frog, and loaches (not all in the same tank) that love to hide. When I feed them I like to do a head count and check on everyone. Should I look for the ones hiding to make sure they are all right or should I keep looking on and off during the day to maybe catch a glimpse of them. The catfish comes out only at night after we go to bed . I have tried to sneak a look after we have went to bed and sometimes I can catch him and sometimes I can't. What do you do?