I have kept several, as mentioned they are a bit delicate, they work wellin planted community tanks with small fish like zebra danios and most small tetras, gouramis and such tend to pick their legs off. They like a bit of current and need something to climb on like bamboo or other plants, They will eat crumbled flake food and small brine shrimp as well as picking up detritus but a couple times a week at least you should use a baster to deliver the food directly to them. Vampire shrimp are easier to care for, just don't drop a rock on them like I did.