Flame scallops filter feed out of the water column. They require a LOT of food to keep alive. They tend to use up alot of energy reseerves moving to a spot in the tank they like when placed somewhere that the person owning them wants them. If they move. Leave them be. As it is they are short lived. I have yet to see one live longer than 6 months to a year in a tank.
hth
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Darren
Always strive for the optimum environment, not the minimum environment
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