Why does my ORA Green Planet Acropora lose its neon green and look dull or yellowish under strong lighting?

This strain’s green fluoresces best under strong blue (420–460 nm). Excessive white-heavy PAR can wash it out or push yellow tones. Aim for high but stable PAR (250–350 at the tips), with nutrients detectable (NO3 2–10 ppm, PO4 0.02–0.08). Avoid big alkalinity swings; keep 8–9 dKH. Gradually acclimate to brighter light to prevent paling or “burnt tips.”

The base is receding slowly while the tips look fine—what’s causing this?

Dense branching can trap detritus at the base, fueling slow tissue necrosis. Increase crossflow around the colony’s lower half, turkey-baste weekly, and ensure the frag is mounted to allow perimeter flow. Check for low, unstable nutrients and alk drift. Address pests (AEFW, red bugs) even if damage isn’t obvious; base recession often precedes visible bite marks.

My polyp extension is short during the day—should I be worried?

This cultivar often shows modest daytime extension under high flow and light yet opens more at night. If extension suddenly retracts, investigate irritants: excessive laminar flow, alkalinity swings, aggressive neighbors (especially leather corals), or pests. Adjust to pulsing/random flow, add carbon to reduce chemical warfare, and verify stable parameters before assuming a feeding issue.

What’s a good strategy to keep the colony from shadowing itself as it grows?

Encourage a wide, encrusted base first by mounting on a small pedestal or tilted plug and providing high, turbulent flow around the perimeter. Periodically trim interior branches to open channels for light and flow, preventing shaded die-off. Plan spacing from adjacent SPS to allow lateral growth; this strain thickens quickly and can out-compete slower acros for light.

ORA Green Planet Acropora Coral

Acropora

Overview

ORA Green Planet Acropora Coral shows vivid green branches with compact radial corallites. Classified as Acropora sp., it is a small-polyp stony branching coral that prefers strong light and high, turbulent flow. It is primarily photosynthetic via symbiotic algae but can use occasional fine particulate foods to support faster growth and richer color. Place high on stable rockwork with space from aggressive neighbors, and maintain stable alkalinity and calcium to prevent tissue loss.

Quick Facts

Care Difficult

Lighting High

Flow High

Placement High

Temperament Peaceful (3–6 inches spacing)

Recommended Parameters

Temp 76–80°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 420–450 ppm

AlkAlkalinity 8–9 dKH

Magnesium 1280–1350 ppm

Feeding photosynthetic (primary), microplankton, rotifers, copepod nauplii, coral-specific powdered foods, amino acid supplements

Care & Placement

ORA Green Planet Acropora Coral (Acropora sp.) thrives with strong, stable conditions and high light. Target 250–400 PAR using quality LEDs or T5/metal halide; acclimate to light over 1–2 weeks with reduced intensity or screening to prevent bleaching. Provide high, random, turbulent flow to keep polyps clean and prevent detritus buildup; avoid a constant jet pointed directly at the colony. Keep temperature 75–79°F (24–26°C), salinity 1.025–1.026, pH 8.1–8.4, nitrate 2–10 ppm, and phosphate 0.02–0.08 ppm. Maintain calcium 400–450 ppm, alkalinity 8.0–9.5 dKH, and magnesium 1300–1400 ppm; test at least weekly (more often in new systems), and consider periodic ICP testing for trace balance. Place frags high on rockwork with strong flow, giving 2–3 inches of space for growth and to avoid contact with stinging LPS. Acropora is generally peaceful but can shade neighbors; it is sensitive to parameter swings. Feed lightly 1–3x weekly with fine zooplankton or amino acids at night; don’t overfeed. Acclimate via drip, dip and/or quarantine to exclude pests (AEFW, red bugs). Watch for tissue recession after alkalinity swings or pests; for rapid loss, frag healthy tips, increase flow, and use an iodine dip. Maintain consistent dosing, clean glass and pumps to keep gas exchange high, and ensure strong export so nutrients stay in range without bottoming out.

FAQ

Frequently Asked Questions

About the ORA Green Planet Acropora Coral

Why does my ORA Green Planet Acropora lose its neon green and look dull or yellowish under strong lighting?

This strain’s green fluoresces best under strong blue (420–460 nm). Excessive white-heavy PAR can wash it out or push yellow tones. Aim for high but stable PAR (250–350 at the tips), with nutrients detectable (NO3 2–10 ppm, PO4 0.02–0.08). Avoid big alkalinity swings; keep 8–9 dKH. Gradually acclimate to brighter light to prevent paling or “burnt tips.”
The base is receding slowly while the tips look fine—what’s causing this?

Dense branching can trap detritus at the base, fueling slow tissue necrosis. Increase crossflow around the colony’s lower half, turkey-baste weekly, and ensure the frag is mounted to allow perimeter flow. Check for low, unstable nutrients and alk drift. Address pests (AEFW, red bugs) even if damage isn’t obvious; base recession often precedes visible bite marks.
My polyp extension is short during the day—should I be worried?

This cultivar often shows modest daytime extension under high flow and light yet opens more at night. If extension suddenly retracts, investigate irritants: excessive laminar flow, alkalinity swings, aggressive neighbors (especially leather corals), or pests. Adjust to pulsing/random flow, add carbon to reduce chemical warfare, and verify stable parameters before assuming a feeding issue.
What’s a good strategy to keep the colony from shadowing itself as it grows?

Encourage a wide, encrusted base first by mounting on a small pedestal or tilted plug and providing high, turbulent flow around the perimeter. Periodically trim interior branches to open channels for light and flow, preventing shaded die-off. Plan spacing from adjacent SPS to allow lateral growth; this strain thickens quickly and can out-compete slower acros for light.