I have a south American bumblebee cafish and I put food in the tank and never seen him eat in 3 days till today frozen blood worms inside his cave he ate a few but still looked a little skinny what else could I get him to eat I don't know much about south American bumblebee catfish except they grow 3 to 4 inches max and water temp 72f to 78f ph I think 6.0 to 7.6 not sure and it is a peaceful fish as long as the other fish are not small enough for it to eat any help would greatly appreciated.