I have a pair if lyretail anthias and feed them twice a day. A mix of flake or pellet in the morning and a frozen mix at night. They love cyclopeeze as a snack.
Lyretail and bartletts are two of the more hardier anthias.
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You might encounter some fighting with 4 clowns in one tank (unless it's a very large tank).
Some hawkfish are known to eat shrimp and snails.