I know a lot of anemone keepers who no longer keep cleaner shrimp with their anemones. Its not because the anemones eat the shrimp. It is because the shrimp steal food from the anemones. I have had shrimp that would even pull food out of the anemone's stomach hours after it had been fed. Aside from not being able to get any food into the anemone, the shrimp tend not to be very careful about it and sometimes tear the anemones delicate tissues.