i went to petsmart just looking around and saw something i didn't expect sun catfish so i grabed one i didn't have enough money to get more or i would of but now my question is do i need more sun catfish or will he be fine on his own. first when i let him in to the tank it swam around then hid for a while and came back out when i was going to feed them i put in brine shrimp and it tried to eat them but spit them out later i tried blood worms but he didn't care so now it won't eat anything