The guy at my local LFS
actually says that he feeds for his own pleasure (monthly) as they catch "flotsam" ummhumm I feed my anemone(s) at least weekly a sizeable piece of shrimp or fish (buy your shrimp from the seafood section whole.
when you lose a fish....... Your BTA just gained a meal--mine enjoyed a beautiful mandarin Goby last week. He enjoys many fish as my LFS
sells quite a few 'soon to be dead' fish. I am no expert as the only existing anemone I have is a Dahlia.
I have bought 3 dead ones from my lfs