Also known as snake locks..hence medusa coral. They do require feeding, small brine shrimp, plankton-type food. The best location is anchored in the substrate with good water current. Some of them will pull themselves into their bases at night almost like an anemone. All this according to Aquarium Corals book by Eric Borneman.
50 gallon saltwater fish only...1 mated pair yellowtail damsels, neon dottyback, tomato clown, huma trigger, lemonpeel angel, 12 stripe wrase, bi-color blenny, dozen or so hermit crabs-scarlet and mexican, cerith snails, turbo snails, orange linkia starfish, 50 plus pounds of purple-pink coraline encrusted rock and a few mushrooms.
Redsea prism protein skimmer, 404 Fluval, UGF
with two 201 powerheads.
7 gallon tank with 6 pounds of live rock and countless brittlestars, 5 hermit crabs, snails and 1 False Percula Clown fish and Camel Back Dancing shrimp