vermetid snail - nasty pest in coral reef aquarium tank

alga animal aquaculture aquarium aquatic attached camouflage close closeup control coral coralline creature detail diversity eater ecology environment exotic gastropod gastropods house invertebrate invertebrates killer life living macro mariculture marin marine mesogastropoda mollusc mollusk nasty natural nature one organism pest petaloconchus photography problem pyramid reef rock rocky saltwater sea sealife seashell seasnail seawater serpulorbis sessile shape shell shore single snail snails spiral tank thylacodes tropic tropical under undersea underwater vermetid vermetidae vermetus water worm wurmschnecke