QUICK STATS

Care Level: Moderate
Coral Type: LPS
Temperament: Aggressive
Photosynthetic: Yes
Placement: Lower to Middle
Lighting: Moderate
Water Flow: Moderate, Indirect
Approximate Purchase Size: Varies by Frag / Head Count
Approximate Max Size: Colony Growth Depends on Stability, Space, and Feeding

BLACK TORCH CORAL

The Black Torch Coral is a striking torch coral variety known for its dark tentacle coloration, contrasting tips, and dramatic movement in reef aquariums. Depending on the specimen and lighting, the tentacles may appear black, charcoal, deep brown, dark purple, or smoky gray, often with brighter green, yellow, gold, blue, or cream-colored tips.

Black Torch Corals are popular because they offer a darker, moodier look than many traditional green or gold torch varieties. Under blue-heavy reef lighting, the contrast between the dark tentacles and bright tips can be especially dramatic, giving the coral a high-end centerpiece appearance without screaming neon from across the room like some corals that clearly need attention.

Like other torch corals, the Black Torch Coral requires stable water chemistry, moderate lighting, and moderate indirect flow. It is not usually difficult once settled, but it does not appreciate unstable alkalinity, harsh direct flow, poor shipping recovery, or being placed too close to other corals. It may look elegant, but it is still a torch coral, which means it comes with stinging tentacles and boundary issues.

This coral is considered aggressive due to its long tentacles and potential sweeper extension. It should be given plenty of space away from other corals. A healthy torch looks graceful in the current right up until it reminds everything nearby that beauty and violence can, apparently, share a skeleton.

Note: Image is a representation of what to expect. The coral you receive may vary slightly in size, color intensity, tentacle length, tip coloration, head count, and overall appearance.

AQUARIUM REQUIREMENTS

AQUARIUM SIZE

A minimum aquarium size of 30 gallons or larger is recommended for a Black Torch Coral. Smaller aquariums can work if they are mature and stable, but larger systems provide better parameter stability and more room for proper coral spacing.

Torch corals can expand significantly when healthy, so placement should account for both the skeleton size and the fully extended tentacles. A frag that looks compact on arrival can eventually become a waving little perimeter dispute with fluorescent tips.

PLACEMENT RECOMMENDATIONS

The Black Torch Coral is best placed in the lower to middle areas of the aquarium where it receives moderate light and indirect flow. Start lower if the coral is new, freshly shipped, or coming from lower lighting, then adjust slowly if needed.

Rock Placement: Place securely on stable rockwork or a frag holder where the skeleton will not rub against nearby rock or topple over.

Sandbed Placement: Temporary sandbed placement can work during acclimation, especially if light intensity is high. Make sure the coral is secure and not at risk of being knocked over by snails, conchs, fish, hermit crabs, or whatever cleanup crew member has chosen demolition as a lifestyle.

Spacing: Leave several inches of space between this coral and neighboring corals. Torch corals can sting other LPS, soft corals, SPS, zoanthids, mushrooms, and basically anything foolish enough to exist too close.

Torch Gardens: Torch corals are often grouped with other torch corals, but compatibility is not guaranteed. Avoid crowding different torch varieties too tightly, especially high-end pieces. Coral warfare is already expensive without giving it assigned seating.

WATER PARAMETERS

The Black Torch Coral does best in clean, stable reef conditions. Stability is more important than chasing perfect numbers. Sudden swings in alkalinity, salinity, temperature, or nutrients can cause retraction, tissue recession, or rapid decline, because apparently coral expresses displeasure through financial damage.

Temperature: 75-79°F
pH Level: 8.1-8.4
Salinity: 1.024-1.026 specific gravity
Alkalinity: 8-10 dKH
Calcium: 400-450 ppm
Magnesium: 1250-1350 ppm
Nitrate: 5-15 ppm
Phosphate: 0.03-0.10 ppm

Avoid ultra-low nutrient systems. Torch corals often do best with detectable nitrate and phosphate rather than a completely stripped tank. “Clean water” does not mean “nutritionally empty glass box,” even though the hobby keeps trying to make that mistake in new and expensive ways.

LIGHTING

The Black Torch Coral prefers moderate lighting. A general target range of 100-200 PAR works well for many torch corals, though the best placement depends on the aquarium’s lighting, flow, nutrient levels, and how the coral was previously kept.

LIGHTING RECOMMENDATIONS

Moderate PAR: Start around the lower to middle end of moderate lighting and adjust slowly based on extension and coloration.

Light Acclimation: New torches should be acclimated gradually to stronger lighting. Sudden increases can cause stress, retraction, bleaching, or color loss.

Color Display: Black Torch Corals often show their best contrast under blue-heavy reef lighting, especially when the tips fluoresce against darker tentacles.

Too Much Light: Signs may include bleaching, pale tissue, retraction, or reduced extension.

Too Little Light: Signs may include dull coloration, weak growth, reduced energy, or poor expansion over time.

Do not blast a new Black Torch with high light immediately because it looked dramatic in a vendor photo. That is not coral care. That is buying a problem and giving it LEDs.

WATER FLOW

The Black Torch Coral prefers moderate, indirect water flow. The tentacles should sway naturally and rhythmically without being slammed in one direction.

FLOW RECOMMENDATIONS

Ideal Flow: Moderate, random, indirect flow that keeps the tentacles moving gently.

Avoid Direct Flow: Strong direct flow can cause the coral to retract, tear tissue, or rub against its skeleton.

Avoid Dead Spots: Too little flow can allow detritus to settle around the skeleton and may contribute to irritation or tissue problems.

Watch the Tentacles: Healthy flow should make the tentacles move like they are swaying, not like they are being assaulted by a pressure washer.

If the torch is fully retracted, whipping violently, or only extending on one side, flow should be adjusted. The coral is giving feedback. Unfortunately, it communicates through tissue drama because apparently words were too efficient.

DIET

The Black Torch Coral is photosynthetic, meaning it receives much of its energy from light through its symbiotic zooxanthellae. However, it can also benefit from occasional feeding with small meaty foods.

PRIMARY DIET

Photosynthesis: Proper lighting provides the coral with much of its energy.

Broadcast Feeding: The coral may capture small particles from the water column during regular fish and coral feeding.

Target Feeding: Small pieces of mysis shrimp, finely chopped meaty foods, LPS pellets, reef roids-style coral foods, or other appropriate coral foods may be offered occasionally.

Amino Acids / Coral Nutrition: Supplemental coral nutrition can be used carefully in established systems, especially when nutrients are controlled but not stripped.

FEEDING FREQUENCY

Feed lightly 1-2 times per week if desired. Avoid overfeeding, especially in smaller aquariums, as excess food can raise nutrients and irritate the coral.

Do not shove oversized food into the tentacles like the coral is training for a buffet challenge. Small food, gentle feeding, minimal reef-keeper nonsense.

COMPATIBILITY

The Black Torch Coral is compatible with many reef aquariums, but it must be placed with enough space from other corals. Its long tentacles and aggressive sting make spacing extremely important.

COMMON TANK MATES

Fish: Reef-safe fish such as clownfish, gobies, blennies, wrasses, tangs, cardinalfish, firefish, and other peaceful to semi-peaceful community fish.

Avoid: Fish known to nip LPS corals, such as some angelfish, butterflyfish, filefish, puffers, and certain triggers.

Invertebrates: Generally safe with cleaner shrimp, snails, hermit crabs, urchins, and most common reef invertebrates. Large clumsy invertebrates may knock the coral over if it is not secured.

Coral: Keep away from most neighboring corals, including hammers, frogspawn, torches, acans, chalices, zoanthids, mushrooms, favias, galaxea, and SPS unless spacing is carefully managed.

Other Torches: Can sometimes be kept near other torch corals, but aggression between different torch varieties is still possible. Give extra space when in doubt, because coral grudges are quiet, slow, and stupidly expensive.

BEHAVIORAL NOTES

Temperament: Aggressive. Torch corals can sting nearby corals with extended tentacles or sweepers.

Extension: A healthy Black Torch should show full, flowing tentacle extension once settled. Some new frags may take several days to fully open after shipping or transfer.

Coloration: Dark tentacles may appear black, charcoal, deep brown, dark purple, smoky gray, or muted green depending on lighting, stress, nutrients, and photography conditions.

Tip Coloration: Tips may appear green, gold, yellow, blue, cream, white, or fluorescent depending on the specific specimen and lighting.

Growth Pattern: Branching torch corals grow by forming new heads over time. Growth depends on stable alkalinity, calcium, magnesium, lighting, flow, and nutrition.

Skeleton Safety: Avoid allowing the fleshy tissue to rub against rock, frag racks, plugs, or neighboring skeletons. Tissue damage can lead to infection or recession.

Brown Jelly Risk: Like other Euphyllia-type corals, torch corals can be vulnerable to bacterial issues such as brown jelly disease, especially after stress, damage, or poor shipping. Rapid tissue loss should be addressed quickly.

Dipping: Coral dipping before introduction is recommended to reduce pests and contaminants. Use coral-safe dips according to product directions.

Frag Handling: Handle by the plug or skeleton, not the soft tissue. The tissue is delicate, because apparently the coral needed to be both gorgeous and structurally dramatic.

Acclimation: New torches should be light-acclimated and placed in moderate indirect flow. Sudden changes can cause retraction or stress.

Stinging Range: Give this coral room to expand. A peaceful-looking torch at noon may become a tentacled menace by evening, because apparently the reef has office hours for violence.

ACCLIMATION PROCESS

This acclimation method helps reduce stress by gradually introducing the coral to your aquarium’s temperature, lighting, and water chemistry.

1. DIM THE LIGHTS

Turn down aquarium lights or place the coral in a shaded lower area at first. This helps reduce stress while the coral adjusts.

2. FLOAT THE BAG

Float the sealed bag in the aquarium for 15-20 minutes to allow the temperature in the bag to equalize with the tank.

3. OPEN BAG, ADD CORAL TO CONTAINER

Carefully open the bag and transfer the coral and shipping water into a clean container. Handle the coral by the plug or skeleton, not the fleshy tissue.

4. ACCLIMATE USING TANK WATER

Add small amounts of tank water to the container every few minutes for 20-30 minutes. Avoid exposing the coral tissue to air longer than necessary.

5. CORAL DIP

Use a coral-safe dip according to the product instructions. This can help reduce pests and contaminants before the coral enters your aquarium.

6. TRANSFER CORAL TO AQUARIUM

Place the coral in a lower to middle area with moderate indirect flow. Discard the shipping and dip water. Do not pour shipping water or dip water into your aquarium.

7. LIGHT ACCLIMATE

Allow the coral to adjust gradually over several days to weeks before moving it into brighter light. Watch for extension, coloration, and tissue health before making major placement changes.