i wouldn't make it a main food for the cats since they are predatory and have a natural diet consiting of fish. it could be used to add verity to the fishes diet. it is originally produced for herbivorous cichlids and not predatory fish. just my opinon though. the main food should consist of fish based things like whole fish, fillets, and similar foods. that is the way i feed my large catfish and my growth rates have not proved me wrong. examples; tsns= 3" to 24" in 6 months, arowana= 3" to 24"+ in 10 months, rtcxtsn= 2.5" to 15-17" in 4-5 months, achara cat 4-5" to 10-11" in 1.5 months. not over exaggerating on the growth as i have vids of the growth.
the high protein helps its capabilities with big preds, but it is still a cichlid oriented pellet. in my opinion.