Is there a reason people feed tilapia over any other fish? Is it just because its so cheap? Sometimes catfish is on sale for cheaper, so if its only a cost issue I will feed my cats catfish
tilapia is just cheaper. catfish can be better for fattening up fish for the winter tho, if you have any in outdoor ponds, mix and match foods. if you can afford salmon, go with that. it's all just a matter of choice