I have two roughly 4" eclipse cats with some cichlids a senegal bichir and some young pacus, they are in a 60 and i have no idea if theyre feeding? I've had them about a week, I've never kept catfish besides plecos before, and i've read and searched alot but am still confused. i only see them at night, but most of what i've read has said food usually brings them out in the day. I give them sinking bottom feeder food at night right before i go to bed (real late) but I don't know if they get enough b/c i've seen my bichir eat those sinking tablets before. Should i be concered? Thanks for any help!