I just bought 3 mexican turbo snails and a dozen blue legged hermits to find that as soon as I put them in the tank my seabird wrasse (ID?) was picking them up and smashing them against the tank to break open the shells.

if this guy eats snails and crabs how can i put a cleaning crew in my tank? kinda stinks, but i guess live and learn

any pointers would be appreciated. thanks!