I have a 50 gallon fresh water tank with 36 mystery snails (blue, golden, jade, magenta and Ivory colors), one Cory cat and one nerite snail currently living in it. Everybody is doing well. I don't have live plants since I don't want ride along pond snails in my tank since I wouldn't know how to get rid of them without harming my mystery snails. So...I've got plastic plants. My tank looks like a regular fish tank but with snails. My snails are spoiled. They are only fed algae tablets, snail jello, and I blanch them veggies which I keep in the tank at all times with so many. I want to make sure everybody is fed. I've always loved fish. I had gold fish in the tank prior and decided to add a snail. The goldfish have since been moved to a large pond since they out grew my tank. I researched why the snails I've bought in the past didn't survive very long. I was shocked at what I didn't know about snails and that's how my snail tank came to be.