Rock Flower Anemone Care Guide

Phymanthus crucifer, commonly known as “Rock Flower anemones” or “Beaded anemones,” are a species of sea anemones belonging to the Phymanthidae family. The anemone’s delicate foot is located on the bottom. The foot has simple muscle fibers that help the anemone move and anchor onto rocks or sand. The body is a disk, flat and edged with about 200 short tentacles, that can grow up to 6 inches in diameter. Rock Flower anemones are often found in a variety of color combinations. These particular anemones do not participate in the symbiotic relationship of hosting clownfish and other anemonefish that is often enjoyed by hobbyists, but will occasionally host certain species of shrimp and even porcelain crabs.

Rock Flower anemones require moderate lighting. We recommend between 150-250 PAR. Rock Flower anemones also prefer moderate water flow to assist in filter feeding particles of food. Bear in mind that anemones will often move themselves until they find an area with their preferred amount of flow and lighting. Please do not attempt to glue your anemone down. They need to be able to move. That said, try to place your anemone in a low area away from wavemakers and pumps. An anemone that gets sucked in, chopped up, and blown all over your tank could be a real problem.

Through their symbiotic relationship with a photosynthetic algae, known as zooxanthellae, they receive many of their nutrients. Rock Flower anemones benefit from targeted weekly feeding with meaty foods such Mysis shrimp or frozen preparations. To maintain good health, monitor your water conditions regularly to avoid any major changes or swings in parameters.


When placing your Rock Flower anemone, please remember that these animals will move to a spot in the tank that they deem best. Be sure to introduce your anemone to an area away from wavemakers and pumps.

AnemoneCruciferPhymanthidaeReefReefchaserRock flower

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