Would it be pointless to have trumpet snails in a tank that doesn't have sand? Will they be in the substrate if it is gravel? I am interested in these little fellas, but I only have gravel in my 2 tanks.
I have a few rumpet snails in my gravel and I don't have any sand tanks currently. I got mine from a doctor's waiting room tank, which was also gravel. He said they came with his plants, and they seem to be doing well.