[emccullough1]

They will be fine with out the epoxy but you will be putting them back all the time. Your crabs and snails will knock the off all the time. If you use a small amount of epoxy you can get them off later if you want. Gust stick a knife in-between the rock and epoxy. You could put them in the sand bed if that have enough of a stem. You crabs and snails will still move them but not as bad.