Lowered the water line a little, no eggs anywhere but the snails (five in there) seem to be doing this non stop one in particular is pretty much latching on to every other one in the tank. I read up on here about hatching and so fourth so hopefully I can get some baby snails if I find a clutch. Also picked up to nice looking light blue shelled ones today but there black snails all the other ones are white. Can the two mix or should I seperate them?