ok so i just bought some mystery/apple snails. i got one gold and 2 blacks plus several babies, i acclimated them like i would any fish (float/add tank water to bag/float/add more water/float/pour some water out in sink and add more tank water/float them add to tank) the babies were all over the tank immediately, no shyness at all, the gold one took maybe 10min and then was all over as well fully out of its shell and exploring, the black ones however stayed in their shells for quite some time, i thought they might be dead as there were several dead snails in the tank (got them from petsmart) but i made sure to ask her to get live ones (i have had someone give me dead snails before from a different store) however i didnt see them before she put them in the bag, so i figured i would give them the night and if they hadnt moved was going to return them, well they proved me wrong and are indeed alive, one moved to the other side of the tank at night but the other one only moved a little, they dont really crawl around like the gold one does and either stay in their shell or are only partially open for their antenna to stick out, have you guys experienced this? are the black ones just more timid or is their something wrong with them?