I have never had rams so I don't know too much about them. But I keep my RCS with tetras, gouramis, and loaches, and they do just fine. The adults will likely be left alone but you may end up losing some shrimplets...you just don't know until you try. Make sure you have lots of hiding places for them...moss really helps with the babies. I thought I would never see babies with my fish, but the colony is constantly growing. And like I said, don't just get a few (unless your tank is fairly small) or you won't really see them. You get get them at a place like Petsmart for around $3.99 (a little steep), or you can buy a bunch of them on AquaBid for around $1 each plus shipping...but usually you have to get a whole lot. Or of course you can look here for people selling them! I would be happy to send some to you for a reasonable offer...just name your price!