Hello all I have a tuxedo urchin "Gus" who does a great job at keeping algae at bay. That being said I am done with him picking up my zoas and removing them from their place in the tank. Gus seems to only like to pick up the expensive ones. I have superglued their frag plugs into holes on the rock yet Gus is still ripping them out of the holes, days after the glue has set. I want to replace Gus I was thinking of a few trochus snails to take his place. Thoughts? Is there a solution that keeps Gus in the tank? My girlfriend is quite attached.