Torch corals can be incredible centerpiece corals when you keep conditions stable and avoid abrupt changes. This guide covers the practical ranges and placement decisions that matter most.
Ideal PAR for Torch Corals
Aim for moderate PAR and increase light gradually. Sudden jumps are a common trigger for stress and tissue recession. If a torch looks shrunken after a light adjustment, back down and re-acclimate over several days.
- Start lower, then increase in small steps.
- Watch polyp extension and tissue fullness after each adjustment.
- Keep a stable schedule instead of frequent intensity changes.
Flow Requirements
Torch corals prefer indirect, rhythmic flow that moves tentacles gently. Harsh direct flow can damage tissue, while dead spots can trap detritus and irritate the coral base.
- Good: gentle back-and-forth sway.
- Bad: constant blasting or no movement.
- Reposition pumps instead of increasing raw power first.
Water Chemistry Stability
Consistency beats constant tinkering. Keep alkalinity, salinity, and temperature steady. Most issues come from swings, not from being slightly off a "perfect" number.
- Salinity: stable around reef levels.
- Temperature: stable daily range.
- Alkalinity: avoid rapid up/down corrections.
Feeding Strategy
Torch corals can benefit from occasional targeted feeding, but overfeeding can degrade water quality. Feed lightly, monitor nutrient trends, and adjust based on coral response.
- Feed small amounts 1-2 times per week if nutrients allow.
- Turn off strong flow briefly during target feeding.
- Resume flow after coral captures food.
Placement and Spacing
Torch corals can have long sweeper tentacles, so leave room between neighbors. Give each colony enough space to prevent sting battles and tissue damage.
- Place with growth in mind, not just current size.
- Avoid packing aggressive LPS together.
- Recheck spacing as colonies expand.
Signs of Stress to Watch
- Persistent retraction
- Tissue pulling from skeleton
- Sudden color fade after major changes
- Brown jelly or rapid tissue loss
If you see stress, stabilize first. Reverse recent big changes before trying new interventions.
Torch Coral Success Checklist
- Acclimate light and flow slowly.
- Keep chemistry steady week to week.
- Feed lightly and keep nutrients controlled.
- Leave safe spacing from neighboring corals.
- Change one variable at a time.
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