parazoanthus polyp colony move tentacle in laminar flow, yellow crust sea anemone on live rock stone in circular current

parazoanthus gracilis zoanthid zoantharia anthozoa tentacle zoanthus hexacorallia cnidarian fluorescent mucus photosynthetic aquatic propagation pedal laceration biodiversity fauna ecosystem environment underwater captive wildlife aggregation chumminess community lateral widespread saltwater aquascape reef tank pico aquaculture colorful flow tropical coral corallimorph exotic macro coelenterates encrusting controlled conditions explore group pet shop hardscape selective focus glass refraction farm polyp colony move laminar yellow crust sea anemone live rock stone circular current animal aquarium led blue