Why does my RR Bleeding Avengers lose its deep red tones and look pink or brown under strong blue light?

This strain’s reds are light- and nutrient-sensitive. Too much PAR or ultra-low nutrients can wash reds to pink; too little PAR or elevated nutrients shift it brown. Target 250–350 PAR with a strong 420–460 nm component plus some 10–14K white. Keep nitrate ~5–15 ppm, phosphate 0.03–0.08 ppm. Maintain stability in alkalinity (8–9 dKH). Gradually acclimate to higher light to avoid pigment shock.

he tips are pale or “burned” while the base encrusts well—what’s causing this?

Tip paling usually follows an alkalinity swing under high PAR. Rapid alk rise drives accelerated skeleton growth that outpaces tissue, producing pale, rough tips. Keep daily alk change under 0.2 dKH, avoid big dosing jumps, and ensure adequate amino/particulate feeding so tissue keeps up. Check for laminar flow blasting the tips; switch to randomized, high but indirect turbulence.

How can I encourage the characteristic bushy branching and maintain color depth in this Acropora sp.?

Mount the frag with the cut end sideways to encourage multi-axial branching; allow the base to fully encrust before pushing PAR above 300. Provide crossfire, alternating flow (2–3 sources) to keep polyp extension without tissue abrasion. Keep potassium 380–420 ppm to support blues, stable temperature 24–26°C, and avoid heavy carbon dosing that strips nutrients too low for reds.

What uncommon pests or issues specifically trouble named tenuis-type Acropora like this one?

They’re prime targets for Acropora-eating flatworms and red bugs, which first dull color then reduce polyp extension. Inspect at night with a flashlight, look for bite marks on smooth areas near tips. Dip new pieces (multiple dip types over weeks), use a turkey baster to blast colonies, and consider a quarantine frag rack. Consistent observation beats reactive treatments.

RR Bleeding Avenger's Acropora Coral

Acropora SPS

Overview

RR Bleeding Avengers Acropora Coral displays branching growth with red to scarlet tips and contrasting pale polyp rings. Acropora sp. Coral is a small-polyp stony branching coral that prefers high light and strong, turbulent water flow. It is primarily photosynthetic through symbiotic algae but will accept occasional fine planktonic foods to support growth and color stability. Place high on rockwork with ample space from neighbors, and avoid contact with aggressive corals.

Quick Facts

Care Difficult

Lighting High

Flow High, turbulent

Placement High

Temperament Peaceful (2–3 inches spacing)

Recommended Parameters

Temp 77–80°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 420–450 ppm

AlkAlkalinity 7.5–8.5 dKH

Magnesium 1280–1350 ppm

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

Care & Placement

RR Bleeding Avengers Acropora Coral (Acropora sp.) thrives with strong, stable conditions and high light. Target PAR 250–350 under quality LED, T5, or metal halide; acclimate to light by starting lower and raising the frag over 1–2 weeks to avoid bleaching. Provide strong, random flow from multiple sources to keep polyps flushed and prevent detritus buildup; avoid direct, constant blasts on the tissue. Keep temp 77–79°F (25–26°C), salinity 1.025–1.026, pH 8.1–8.4, alkalinity 8–9 dKH (stable is key), calcium 420–460 ppm, magnesium 1300–1400 ppm, nitrate 2–10 ppm, phosphate 0.02–0.08 ppm. Test weekly (alk more often), use an ATO for salinity, and change media or dosing slowly. Feed small-particle coral foods or amino acids 1–3x weekly; don’t overfeed—balanced nutrients support color and growth.Place high on stable rock with room for vertical growth and good flow around branches. Space at least 3–4 inches from neighbors; avoid contact with aggressive LPS or fast encrusters. Temperament is peaceful but sensitive to swings; stability beats chasing exact numbers. Dip and inspect for pests (AEFW, red bugs) and consider quarantine. Mount securely with gel glue (and epoxy if needed). Signs of trouble: paling/bleaching (too much light or rapid change), tissue recession (instability or pests), burnt tips (rapid alk rise). If RTN/STN starts, frag healthy tips and correct instability. Regularly blow off detritus, clean pumps, and track trends to maintain steady growth and color.

FAQ

Frequently Asked Questions

About the RR Bleeding Avenger's Acropora Coral

Why does my RR Bleeding Avengers lose its deep red tones and look pink or brown under strong blue light?

This strain’s reds are light- and nutrient-sensitive. Too much PAR or ultra-low nutrients can wash reds to pink; too little PAR or elevated nutrients shift it brown. Target 250–350 PAR with a strong 420–460 nm component plus some 10–14K white. Keep nitrate ~5–15 ppm, phosphate 0.03–0.08 ppm. Maintain stability in alkalinity (8–9 dKH). Gradually acclimate to higher light to avoid pigment shock.
he tips are pale or “burned” while the base encrusts well—what’s causing this?

Tip paling usually follows an alkalinity swing under high PAR. Rapid alk rise drives accelerated skeleton growth that outpaces tissue, producing pale, rough tips. Keep daily alk change under 0.2 dKH, avoid big dosing jumps, and ensure adequate amino/particulate feeding so tissue keeps up. Check for laminar flow blasting the tips; switch to randomized, high but indirect turbulence.
How can I encourage the characteristic bushy branching and maintain color depth in this Acropora sp.?

Mount the frag with the cut end sideways to encourage multi-axial branching; allow the base to fully encrust before pushing PAR above 300. Provide crossfire, alternating flow (2–3 sources) to keep polyp extension without tissue abrasion. Keep potassium 380–420 ppm to support blues, stable temperature 24–26°C, and avoid heavy carbon dosing that strips nutrients too low for reds.
What uncommon pests or issues specifically trouble named tenuis-type Acropora like this one?

They’re prime targets for Acropora-eating flatworms and red bugs, which first dull color then reduce polyp extension. Inspect at night with a flashlight, look for bite marks on smooth areas near tips. Dip new pieces (multiple dip types over weeks), use a turkey baster to blast colonies, and consider a quarantine frag rack. Consistent observation beats reactive treatments.

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