Moderation is always good, but In that case, why bother in the first place? On top of all this it's messy, and because it needs to be carefully trimmed of all fat it's a pain. These are fish and they really don't need a weekly McDonalds fix.If you fed red meat to your fish every day, it would probably cause big digestive problems,
Beefheart is used by breeders because it promotes excessively fast growth. People often follow a breeders example (surely they must know what they're doing), not realizing that their greater interest is in selling stock as quickly and large as possible. Fish stores sell beefheart because it sells. They don't need another reason. Don't ever assume a retailer wants what's best for you.