Ricordeas are a type of "Corallimorphs" as they are known in the hobby, which are in the Corallimorpharia family. They can reproduce in captivity, and are fairly easy to keep. When they arrive in the mail they will be retracted and appear small. They will expand in time under the right conditions. After acclimated to the aquarium they should be added when the lights are dim to prevent shock, and fed once they show they are beginning to open up. They can grow to 2.5 inches in diameter and usually split to form another polyp at that time. They can sting nearby coral, so some room should be given to them to prevent them harming other corals, or so they do not get harmed by those corals. Ricordea is able to survive off of photosynthesis alone, but will benefit from feedings of small meaty foods like Brine and Mysis shrimp.
Ricordea are easy to propagate. To propagate them:
1.) Remove some tank water and place in a container.
2.) Add iodide to the container according to instructions.
3.) Let them sit for 3 minutes or so.
4.) Remove them from the container and place on a dry surface for cutting.
5.) Briefly dab them with a dry cotton towel to remove excess water.
6.) Cut them in half with a razor blade or scalpel, (or in fours), but try to keep a portion of the mouth in both halves you are cutting.
7. ) Place them back in the container with iodide and let them sit for another 3-5 minutes.
8.) Place them back in the tank in a low flow area.
They take about a month to heal, at that time you should begin feeding them again to get them to grow back out. They can reproduce on their own as well by budding.