Blue Tip Frogspawn
Euphyllia divisa
Wavy branch-like tentacles tipped in electric blue, swaying gracefully in medium flow. One of our most popular LPS centerpieces.
- Lighting
- Medium
- Flow
- Medium
- Placement
- Mid rockwork, away from neighbors
- Temperament
- Semi-aggressive, sweeper tentacles
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Care guide
Keeping Euphyllia in a reef tank
Frogspawn is named for its clustered, egg-like tentacle tips. Euphyllia divisa is the most placid of the Euphyllia commonly sold and the easiest to place in a mixed reef, though 'most placid Euphyllia' still means a coral with night-time sweepers that will sting a non-Euphyllia neighbour within reach.
Lighting for Blue Tip Frogspawn
Moderate light is plenty, and this genus is easy to overdo. Under too much intensity the polyps stay tightly withdrawn and the tissue pales; under appropriate light they inflate well beyond the footprint of the skeleton. This particular frag is rated for medium light — roughly 100–200 PAR, around the middle of the rockwork.
Water flow
Gentle to moderate, indirect flow lets the polyps inflate fully. Strong direct current keeps them permanently deflated, and over time that suppressed extension shows up as stalled growth. Flow for this frag should be moderate and variable.
Placement and tank mates
Mid rockwork, away from neighbors. Semi-aggressive, sweeper tentacles.
What to watch for
Euphyllia deploy long sweeper tentacles after lights-out that reach well past their daytime footprint, so leave four to six inches to any non-Euphyllia neighbour. Brown jelly disease is the serious risk in this genus and moves fast — a colony showing it should be removed and dipped rather than watched.
