I'm thinking of getting a few snails for my fishtank. I'm looking into MTS's and Ramshorn snails. My question with the ramshorn ones is, is there a difference between the different types besides the colors? I've seen red ones, brown ones, blue ones, pink ones, leopard spotted ones...Are they all the same animal with different colorings, or are they different species? Is one kind better to get than another?
Also, I've heard all kinds of wonderful things about MTS's, but how are Ramshorn snails for keeping the algae down? Are they even worth having in my tank? I don't have any live plants in the tank, but I'm hoping they'd be able to keep the algae down on the artificial ones since it's hard to get them clean, I always miss spots.