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Guide des coraux non-photosynthétiques

Par Centridae3 min de lecture

This Various NPS coral is rated difficult difficulty and requires PAR levels of 0 with medium–high flow. It derives most of its nutrition from photosynthesis via its symbiotic zooxanthellae. Best placed in the shaded areas area of the tank, it has low aggression.

Fiche technique

TypeVarious NPS
DifficultyDifficult
PAR range0
FlowMedium–High
FeedingTarget + broadcast fed
Growth rateSlow
AggressionLow
PlacementShaded areas

Besoins en lumière

This is a non-photosynthetic (NPS) coral that does not require light for survival. In fact, placing it under intense lighting can stress the animal. Position it in a shaded overhang or cave where light is minimal. The coral relies entirely on direct feeding for its energy needs.

Besoins en courant

Strong, chaotic or random flow is essential. Avoid direct, laminar flow pointed at the coral as this can damage tissue. Instead, use opposing powerheads or gyre pumps to create turbulent, variable flow patterns. The coral should sway gently but not be blasted. Dead spots cause detritus accumulation and increase disease risk.

Placement

Place this coral in the shaded areas area of your aquascape. This coral has low aggression and plays well with neighbors. Standard spacing of 1–2 inches is usually sufficient, though growth patterns should be monitored over time.

Secure the coral to rockwork using reef-safe gel super glue or epoxy. Ensure it is stable and won't topple—falling corals get stressed and damaged. Let the glue cure briefly before returning the frag to the tank.

Nourrissage

As a non-photosynthetic coral, this species depends entirely on direct feeding for survival. Feed daily or every other day with meaty foods: finely chopped Mysis shrimp, Cyclops, rotifers, or specialized NPS coral foods. Use a feeding dome or turn off flow briefly during feeding to ensure the coral captures food particles. NPS corals require a significant commitment to feeding—missing feedings leads to slow starvation.

Bouturage

Fragging technique depends on the specific coral morphology. Research the appropriate method for this species before attempting propagation. Always frag healthy colonies and use clean, sterilized tools.

Problèmes courants

  • Tissue recession or bleaching: Usually caused by unstable parameters, excessive light, or chemical aggression from neighboring corals. Investigate recent changes in lighting, dosing, or new coral additions.
  • Failure to extend polyps: Check flow strength (too strong?), lighting intensity, and water quality. Recent dipping or transport stress can also cause temporary retraction.
  • Pests: Inspect for flatworms, nudibranchs, or other parasites. A prophylactic coral dip (Coral Rx, Bayer) upon introduction prevents most pest issues.
  • Slow growth: Ensure adequate feeding, stable alkalinity (8–11 dKH), calcium (400–450 ppm), and magnesium (1300–1400 ppm). SPS corals especially need stable, consistent alkalinity for skeleton building.

Questions fréquentes

Is this coral good for beginners?

This is an advanced coral that requires stable, pristine water conditions and experience. Beginners should not attempt this coral until they have successfully kept easier species for at least 6–12 months.

What PAR level does this coral need?

None—this is a non-photosynthetic coral that does not use light for energy. Avoid placing it under intense light.

How fast does this coral grow?

Growth rate is slow. Factors that influence growth include lighting intensity, flow, feeding regimen, and stable water chemistry. Consistent alkalinity and calcium are the primary drivers of calcification rate in stony corals.

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