Frogspawn coral (Euphyllia divisa) care guide

Group
Corals
Other names
Fimbriaphyllia divisa, Frogspawn, Wall frogspawn
Family
Euphylliidae
Origin
Indo-Pacific, from the Indian Ocean to the western Pacific, on lagoon and reef slopes
Water
saltwater
Temperature
22–26°C
pH
8.1–8.4
Hardness
dKH 8–12
Care level
intermediate
Reef safe
with_caution
Lighting
Moderate (LiveAquaria)
Flow
Moderate, indirect

Care

Frogspawn is a large-polyp stony (LPS) coral whose long, fleshy tentacles end in clusters of small knobs, like frogspawn. LiveAquaria sells green, brown and tan forms, plus branching, green-tip, purple-tip and green-with-pink-tip variants. Naming: in 2017 frogspawn and hammer corals were moved from Euphyllia to the genus Fimbriaphyllia, so this coral is now also called Fimbriaphyllia divisa. Place it in the middle to upper rockwork (LiveAquaria) with moderate light and gentle, indirect flow that moves the tentacles without tearing them. LiveAquaria rates it moderate. Water: LiveAquaria gives dKH 8–12, pH 8.1–8.4 and 22–26 °C, with calcium, strontium, magnesium and trace elements supplemented. Stable alkalinity is key; Euphyllia often react badly to swings. Growth is moderate; branching forms add new heads steadily. Selling: this is a CITES Appendix II coral. Frags grown in the UK can be sold freely; wild-collected or imported pieces must have been legally imported with CITES paperwork. Sources: LiveAquaria (liveaquaria.com/products/frogspawn-coral). Checked October 2026.

Diet

Photosynthetic: its zooxanthellae supply most of its nutrition. LiveAquaria says it benefits from extra food such as micro-plankton or brine shrimp; small meaty foods (mysis) a couple of times a week help growth.

Breeding

Branching (multi-head) frogspawn is easy to frag: cut between heads with bone cutters or a saw, leaving each head on its own stem, and glue it to a plug. Wall (single skeleton) forms need a saw and are riskier. Frags heal best in good flow.

Compatibility and tank mates

Aggressive (LiveAquaria). In the evening its sweeper tentacles can reach about 15 cm from its base and will sting neighbouring corals, so give it plenty of space. It is usually tolerant of other Euphyllia, but keep it well away from other LPS and SPS. Clownfish sometimes host in it. Some angelfish nip the polyps.

Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.

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