I've kept them before and think they are beautiful plants. They would grow until the plant got big enough then it would detach itself from the bulb. Most of the time the bulb wouldn't sprout again for a couple weeks, sometimes more then a month. It seemed to enter a dormancy period. But, eventually, it would sprout another plant. I would say the plant will do best under medium lighting. I kept mine in a high light tank and it would grow algae on the older leaves. But, it was a pretty undemanding plant. If you get any leaves that reach the surface, like a lily pad, you can cut them off if you have other plants in the tank because it will block the light. Otherwise, if you leave it, you should get a flower.