torch coral move fluorescent orange tentacle on frag plug, bullseye mushroom soft coral symbiont coexist, live rock reef

euphyllia glabrescens largepolyp stony coral lps caryophylliidae trumpet sweeper tentacle cnidocyte corallite indonesia aggressive sting zooxanthella photosynthetic skeleton rhodactis inchoata discosomidae tonga blue mushroom oral disk colony biodiversity fragging fauna propagation environment underwater aggregation chumminess community lateral widespread saltwater reef tank aquaculture colorful flow tropical coralimorph exotic macro coelenterates commensal controlled conditions pet shop aquadesign glass refraction shallow dof torch move fluorescent orange frag plug bullseye soft symbiont coexist live rock marine aquarium ecosystem aquascape led light farm cultivation