fluorescent space invader pectinia polyp on frag plug, banggai cardinalfish figure in reef marine aquarium ecosystem

pectinia alcicornis merulinidae pectiniidae chalice coral spiny cup antler indopacific plankton feeder photosynthetic zooxanthellae large polyp stony lps encrusting cabbagelike aggressive sweeper tentacle sting branch shape pterapogon kauderni apogonidae endangered current stone captivity aquatic biodiversity fauna environment underwater propagation lateral widespread salt saltwater aquadesign aquascape hardscape reef tank aquaculture flow tropical coralimorph macro controlled conditions pet shop space glass refraction selective focus fluorescent invader frag plug banggai cardinalfish figure marine aquarium ecosystem sand bottom live rock beginner led actinic