WYSIWYG Ultra Walling Frogspawn Colony (Euphyllia divisa) – Expands to 8″

A true showpiece — this Ultra Walling Frogspawn Colony glows an electric neon green with hundreds of blue-tipped tentacles that sway hypnotically in the flow. As a walling (wall-type) frogspawn, it grows in a continuous ridge rather than branching heads, giving it a dense, dramatic profile that expands out to a full 8″ when open. The exact coral pictured is the exact coral you receive.

Frogspawn is a classic Euphyllia with constant movement and presence — clownfish will often host in it. A colony of this size and color is rarely available.

• Colony size: Expands to approx. 8″ fully open
• Care level: Moderate
• Lighting: 100–150 PAR (moderate)
• Flow: Moderate, indirect — enough for gentle tentacle sway
• Placement: Mid rockwork with room to expand; keep 6″+ from non-Euphyllia neighbors (potent sweepers)
• Feeding: Benefits from meaty foods (mysis, brine, reef pellets) 1-2x weekly
• Water parameters: Stable reef parameters (Ca 380-450, Alk 8-12 dKH, Mg 1250-1350)

What to expect when it arrives

Open the box the day it lands. A shipped Euphyllia arrives retracted, often with the tentacles pulled almost completely into the skeleton, and it can look alarming if you have not seen it before. That is normal. Float the sealed bag for 15 minutes to match temperature, then drip acclimate over 45 to 60 minutes. Do not add the shipping water to your tank.

Give it a low-flow, moderate-light spot on the first day and leave it there. Most torches and hammers begin partial extension within 24 hours and are fully open in one to three days. The single most common mistake is deciding after six hours that the spot is wrong and moving it — every move restarts the adjustment clock, and a coral moved four times in a week may never settle.

Placement, once it has opened

Watch the tentacle behavior rather than the PAR number. Tentacles should drift and sway with a slow rhythm. If they stream in one direction and stay there, flow is too strong. If they hang limp and short with the coral inflated, flow may be too weak. Adjust one variable at a time and give it three days between changes.

Allow six inches of clear space in every direction before you commit to a location. Euphyllia sweeper tentacles extend well beyond the daytime footprint after lights out, and the neighbor that looks safe at noon may be getting burned at 2 a.m. If you keep other Euphyllia, they generally tolerate each other, but torches will win any exchange.

Growth and fragging

A settled Euphyllia adds heads by splitting, and in a stable tank with occasional feeding you should see a head begin to divide within three to six months. Branching forms separate onto their own stalks and can be cut apart cleanly once the branch has elongated; wall forms are harder to divide and most keepers leave them whole. A colony that has not split in a year is usually reporting a flow or light problem rather than bad genetics.

Tank mates and compatibility

Keep it away from any coral it can reach. Peaceful fish are fine, but large angels, some butterflies and a few wrasses will pick at Euphyllia tentacles, and a coral that retracts every time a specific fish passes is telling you something. Clownfish will sometimes host in a torch; this is usually tolerated but can damage the tissue over months.