Torch Coral Care: The LPS Everyone Wants (and Overpays For)

Torch corals occupy a strange corner of the hobby: they are simultaneously one of the most beautiful LPS corals, one of the most aggressively marketed, and — per dollar spent — one of the most frequently killed. Named morphs routinely sell for hundreds per head, and shops know a glowing torch under blue LEDs sells itself. This guide is about keeping the animal alive and multiplying, which turns out to have almost nothing to do with what you paid for it.

What you are buying

Torches (Euphyllia glabrescens) are branching LPS: each head on its own skeletal stalk, long flowing tentacles with contrasting glowing tips, constant motion. The named-morph market — hellfire, dragon soul, banana, holy grail and friends — is the LPS equivalent of the zoa morph game. Two honest observations from years of watching it: the fifty-dollar Indo gold torch and the five-hundred-dollar grail are equally difficult to keep, and morph prices only fall as frags proliferate. Buy the cheap torch first. If you cannot keep it thriving for six months, the expensive one would have died too — it just would have hurt more.

Sourcing matters more with torches than with most LPS. Indonesian torches are generally hardier imports; Australian torches run larger and more dramatic but ship worse and acclimate slower. Wherever it came from, insist on seeing the torch with feeding response or full extension, and inspect the skeleton for pests before money changes hands.

Core parameters

Torches want what hammers want, only with less tolerance for error:

• Salinity 1.025-1.026, temperature 76-79F
• Alkalinity 8-9.5 dKH and stable — a 1 dKH overnight swing that a hammer shrugs off can send a torch into full retraction
• Calcium 400-450 ppm, magnesium 1300-1400 ppm
• Nitrate 5-15 ppm, phosphate 0.03-0.1 ppm — do not starve them clean

Weekly testing is the floor, and during the first two months with a new torch I test alkalinity twice a week with a titration-style alkalinity test kit. Torch budgets should include test reagents; it is absurd to hang a four-hundred-dollar coral on a parameter you measure monthly.

Flow and placement

Moderate, indirect, randomized — the Euphyllia formula, tuned slightly gentler than a hammer. Tentacles should stream and sway, never pin flat. Torches do well mid-rockwork or on dedicated pedestal rocks with open water around them, and a controllable wavemaker on random mode beats any fixed powerhead aimed across them.

The placement rule that actually matters: torches are the enforcers of the Euphyllia family. Their sting outclasses hammers and frogspawn, and their nighttime sweepers reach further than you think. Give every torch six to eight inches of clearance from everything, including other Euphyllia. Torch-to-torch contact between different colonies is also not guaranteed peaceful — same-colony heads coexist, strangers sometimes do not.

Lighting

75-150 PAR, moderate spectrum-blue-heavy light. Torches show their color under actinic-leaning spectrums, which is exactly how shops display them — expect your torch to look different (usually less radioactive) under a balanced home spectrum. High PAR does not improve torches; it bleaches tips and shrinks extension. New arrivals go low and shaded for two weeks minimum. Light acclimation failures kill more expensive torches than pests do.

Feeding

Torches feed enthusiastically: mysis, chopped table shrimp, coral pellets, once or twice weekly per head. Watch the feeding response — tentacles grip and pull food to the mouth within seconds when the coral is healthy. A torch that ignores food it used to take is an early warning worth a full parameter check.

The failure modes

Torches die in recognizable ways, and speed of response decides outcomes:

• Brown jelly disease: the big one. Gray-brown jelly over receding tissue, often within days of shipping stress or tissue damage. Immediately isolate, siphon jelly off outside the display, amputate affected heads below the tissue line with bone cutters, and dip surviving heads. Hesitate and you lose the colony.
• Bailout: the polyp abandons its skeleton. Almost always chemistry shock — check alkalinity and salinity, and review anything you dosed in the last 48 hours.
• Slow base recession: flow too direct, light too high, or a swing you did not catch. Fix the environment; recession halts if you remove the cause early.
• Closed and sulking: after shipping this is normal for up to a week. Beyond that, run the systematic checklist in our guide to corals that will not open.

Every incoming torch gets dipped in a coral dip solution and inspected — Euphyllia-eating flatworms and hitchhiking crabs ride the skeletons of even premium livestock. Dip the coral, discard the shipping water, and quarantine if you have the setup.

Fragging: yes, even the expensive ones

Branching torches frag exactly like hammers: cut the stalk an inch below the head, glue, heal, grow. A healthy head splits every two to four months, which is also the honest math behind morph prices collapsing — every grail torch in the country is quietly doubling. Fragging your own colony and trading locally is how torch keeping funds itself. Our hammer coral guide covers the closely related fragging and husbandry details for the rest of the family.

FAQ

Why did my torch coral die so fast?

The classic sequence is shipping stress, an unnoticed alkalinity swing, then brown jelly within the first month. Slow acclimation, gentle light, stable dKH, and a pre-entry dip prevent the majority of first-month losses.

Are expensive torch morphs harder to keep?

No — a holy grail and a common gold torch have identical husbandry. The expensive one only feels harder because the stakes amplify every mistake. Prove your tank on a cheap torch first.

Can torches touch hammers or frogspawn?

Avoid it. The old rule that all Euphyllia can touch holds reasonably well for hammers and frogspawn, but torches sting harder than both and usually win the exchange. Give torches their own spacing.

A torch that stays put, eats weekly, and never experiences an alkalinity surprise will out-glow anything in the store display within a year. For the complete framework — stocking order, chemistry, propagation — see our full guide to coral care and propagation.