euphyllia ancora hammer coral is a species of hard coral in the family euphylliidae.

anchor ancora animal aquarium aquatic background bubble color colorful common coral corals cristata environment euphyllia euphylliidae exotic family frequently hammer hard honeycomb known less life long lps macro mariculture maricultured marine multicolor names nature paraancora photo photography polyp polyps reef reefs ridge salt saltwater sausage scene sea sealife seawater several species stony tank tentacle tropical ultra undersea underwater unique water