I feed my saddle puffer with mostly krill, I rotate in some fresh clam and shrimp in the shell that I get from the grocery store. I cut the shrimp and freeze them to kill anything unwanted. I crush the clam after I freeze it and feed pieces of that. I have not noticed any excess growth of his Brel in the 6 months I have had mine. I also keep snails and hermits in the tank, my guess is he snacks on them if he gets hungry or needs to wear his heel down.
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