If you use tilapia make sure it is trisodium phosphate free and try not to let them over feed on fillet because thick slabs of meat vs a whole prey is harder to digest. Another good food source would be frozen thawed silversides or nightcrawler worms cut up. I hope you enjoy the little guy and as far as taming goes it should be pretty docile. They are pretty squirmy though until they get used to being handled!