It says there you can keep them with robust plants but I've never met a plant that can stand up to these guys. You can help control their infamous rapid growth by feeding a mostly herbivorous diet. - while they do grow fast either way, the tendency is to load these guys up with pellets and bloodworms and such.
Thanky you. I will be giving them to the LFS though. I bought a used tank, and I don't want them. But who knows, I might have to keep them for a while, until someone wants to pick them up.