Mystery Snail // Gold Inca Snail ?

[woodstock]

Are these two snails different? They seem to be related to the apple snail, or somehow. If I put them together, would they breed? I'm planning on getting one of each. In terms of taking care of them, is there any notable difference in how I should treat them? And are they bad poopers? I'm planning on putting them in at the same time. Bad idea? -Will it ruin the cycle? Thanks.