Gene0514;1518701; said:oscar, bichir, sun catfish, spiny eel, weather loach, a goldfish, a pleco, and a small clowed frog? They are all small by the way
if all these guys are in the same tank, that could be a big issue. clawed frog, and oscar would be the first choices i guess to be bothering the knife.
aside from that, those fish need different set ups. #1 issue there being goldfish are coldwater and not warm water fish