since my betta died in my 2.5 gallon ive had 2 snails just slowly growing and crawling around, there weird, like transparent with little blueish dots on there shells. i wish i could get a picture but my camera isnt the best, so ill have to try eventually. anyways i think there breeding, because now theres 4 snails ive seen. and i know its not above water because ive checked and also below water (near my gravel) theres 2 little transparent sacks with 9-10 little dots in there. the snails really love the tank, theres a small amount of green algae on the walls and some big chunks on the floor, along with a banana plant i need to get out of there since there devouring its leaves. i need an ID on these guys asap. ill post pictures soon.