Is this possible? I read the article on freshwater snails and there were two that had the common name of mystery snail. I think they are Ampulariidea but could they be Viviparidea? The two have different reproductive habits and different care requirements. I thought they were easy to care for snails like nerites so bought them. Will they be ok in my 55gl planted community? I usually have about half an inch of space above the water line, so is that enough?