Frogspawn Coral

About

Frogspawn coral (Euphyllia divisa) gets its common name from those distinctive branching colonies of rounded, bubble-tipped tentacles that billow and sway with any water movement, resembling clusters of amphibian eggs. It belongs to the large-polyp stony coral group, and each colony can grow into an impressive mounding or branching structure over time. In the wild, it ranges across a broad sweep of the Indo-West Pacific, from Japan down through Indonesia and Papua New Guinea to Australia, where it occupies reef environments from the shallows all the way down to around 40 meters. In the aquarium, frogspawn is considered an intermediate-level coral. Not the most demanding LPS you can keep, but not a beginner's first coral either. It appreciates stable water chemistry and consistent, moderate flow, but be aware that those sweeping tentacles pack a reasonable sting and should be given enough space so they don't make contact with neighbors. Under good lighting and with regular feeding, colonies will extend their polyps dramatically during the day and reward patient keepers with steady, visible growth. It is reef safe in the sense that it won't actively attack rockwork inhabitants, but proximity to other corals remains something to manage carefully.