Just make sure that you don't make it the bulk of their diet. If money is short it comes in handy though. I feed only about 10% hotdogs probably, and that's enough to cut down on my food bill drastically. Time to get a better paying job lol. With all my catfish I have 1 over 3', and 4 others over 2', and 5 others over 1'. The rest are less than 1'. Feeding them while building them a bigger home hurts ouch!!! Just make sure it's small chunks of hotdog. My hybrid took the longest to take it the first time he tried it, but you could tell he loved the taste, now it's his favorite. I feed him a few chunks of hotdog(about a whole hotdog) then shrimp (about 1.5 lbs) then a handfull of cichlid pellets to round it out. He gets that about every other to every three days.