Torch Coral Care Guide: Euphyllia Flow, Feeding and Placement
With long, flowing tentacles tipped in neon green, gold, or purple, the torch coral is one of the most visually dramatic additions to any reef aquarium. This torch coral euphyllia care guide walks you through everything needed to keep Euphyllia glabrescens healthy in Singapore’s tropical conditions. At Gensou Aquascaping Singapore, we consider torches a step up from beginner softies — rewarding for hobbyists ready to pay closer attention to flow, placement, and water chemistry. This guide sits inside our broader Saltwater Reef Tank Master Guide reference.
Species Background
Euphyllia glabrescens is a large polyp stony (LPS) coral found across Indo-Pacific reefs. Each head consists of a calcified skeleton topped by fleshy tentacles that extend during the day to capture light and food. Torch corals are colonial — multiple heads branch from a shared skeleton over time. They belong to the same genus as hammer and frogspawn corals, and while Euphyllia species tolerate each other’s proximity, they will sting most other coral types on contact.
Water Parameters
Stability is critical. Target salinity of 1.025, temperature between 25 and 26 °C, alkalinity of 8–9 dKH, calcium 420–450 ppm, and magnesium 1300–1400 ppm. Torch corals are sensitive to alkalinity swings — a sudden jump of 2 dKH can trigger tissue recession overnight. Dose cautiously and test frequently. In Singapore, where evaporation is rapid year-round, an auto top-off system helps prevent salinity spikes that compound the problem.
Lighting
Moderate PAR between 100 and 200 works well. Torches photosynthesize through their zooxanthellae but do not demand the intense light that SPS corals require. Position them on the mid-level of your rockwork, avoiding the highest points directly under LED fixtures. If tentacles appear bleached or shortened, reduce intensity or raise the light fixture a few centimetres. Most modern LED units with adjustable channels allow you to dial blue up and white down for an ideal Euphyllia-friendly spectrum.
Flow — The Critical Factor
Getting flow right matters more for torches than for almost any other common coral. You want gentle, indirect, alternating current that causes the tentacles to sway gracefully without snapping or tangling. Direct, high-velocity flow from a powerhead aimed at the colony is the fastest way to damage tentacle tissue and invite brown jelly disease. A wavemaker on a random or pulse programme, positioned so the torch receives diffused current, is the safest approach. In nano tanks under 100 litres, a single small wavemaker set to its lowest speed is often sufficient.
Placement and Spacing
Torch tentacles extend much further than they appear when retracted — sometimes 10–15 cm beyond the skeleton. Account for this reach when placing your coral. Leave generous clearance between the torch and any non-Euphyllia neighbour. A good rule: measure the tentacles at their fullest extension during peak lighting, then add another 5 cm of buffer. Position torches on isolated rock outcrops or at the edges of your aquascape where their sweeper tentacles cannot reach prized SPS colonies.
Feeding
Target feeding significantly benefits torch corals. Offer small pieces of frozen mysis shrimp, enriched brine shrimp, or reef-formulated pellets two to three times per week. Using a pipette or turkey baster, place food directly onto the tentacles — you will see them curl inward as the coral draws the morsel toward its mouth. Feed after lights dim for best response. Regular feeding promotes faster head growth and more vibrant tentacle colour.
Brown Jelly Disease and Other Threats
Brown jelly disease (BJD) is the nightmare of every Euphyllia keeper. It presents as a brown, gelatinous slime that rapidly consumes tissue, often killing an entire colony within 48 hours. Causes include bacterial infection triggered by tissue damage from excessive flow, stings from neighbouring corals, or poor water quality. At the first sign, remove the affected head, siphon away all jelly, and dip the remaining colony in an iodine-based coral dip. Quarantine it in a separate container with clean saltwater and gentle aeration. Prevention through proper flow, spacing, and stable water is always better than treatment.
Buying Torches in Singapore
Single-head torch frags typically cost $30–$80 at local marine shops, with rare colour morphs — holy grail, dragon soul — fetching several hundred dollars. Shops along Serangoon North and various Thomson outlets carry regular stock. When selecting a frag, look for fully extended tentacles, a clean white skeleton free of algae, and no signs of tissue recession at the base. Always dip new torches before placing them in your display tank. With patience and attention, a single head can grow into a stunning multi-headed colony that becomes the centrepiece of your reef.
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