okay then, follow the original recommendation of just waiting a day or so to see if they perk up. Chance they may have just been uber stressed from the acclimation or tranport. I've had trochus do the same thing, just sit their for awhile before they decide to start moving again. Buy just for kicks, what are your water parameters running currently? Snails are inverts and can get a little uneasy with unoptimal water quality. Any ammonia or nitrite will be toxic to them, severaly high nitrates and phosphtae levels won't be good for em either. If all 4 of these are running 0 as they should be, then I'd personally chalk it up to just acclimation stress.