Why do the tips of my Goliath Acropora Coral bleach while the base stays colored?

Tip burn often points to a mismatch of high light with rising alkalinity or ultra-low nutrients. Keep alk steady (7.5–8.5 dKH), maintain a phosphate “floor” (0.03–0.08 ppm) and nitrate 5–15 ppm, and provide strong, turbulent flow. Ramp PAR changes slowly (target 300–450 at tips). Verify potassium (~390–420 ppm) and iodine are in range; deficits can blunt pigments and stress new growth.

Can this coral shift between tabling and branching forms in a tank?

Yes. Acropora sp. adjusts structure to flow and light. Broad, laminar flow with strong top-down light encourages plating/table-like growth; chaotic high flow from multiple directions with side lighting drives denser branching. Prevent self-shading by elevating the colony and allowing lateral clearance. Rotate or slightly adjust pumps monthly to avoid single-direction growth and dead zones inside the colony.

How do I lock in deep blues or purples instead of defaulting to green/brown?

Color is a balance of light spectrum, nutrients, and trace support. Use strong blue/royal-blue heavy spectra, but avoid blasting PAR without nutrients. Hold phosphate at 0.03–0.08 ppm and nitrate 5–15 ppm. Keep potassium 390–420 ppm and maintain minor iodine/iron levels via measured dosing or water changes. Stable temperature and alk matter more than chasing ultra-high PAR; sudden swings wash out chromoproteins.

Are there pests uniquely troublesome for this species, and how do I detect them early?

Acropora-eating flatworms and “red bugs” target Acropora sp. Look for feeding bite marks, pale patches between polyps, or skittish polyp extension despite stable parameters. Inspect undersides with a flashlight after lights out; turkey-baste the colony to flush flatworms. Quarantine new pieces, perform repeated dips, and consider a pest-hunting wrasse. If infested, pair dips with manual siphoning and increase observation intervals for several weeks.

TSA Goliath Acropora Coral

Acropora SPS

Overview

Goliath Acropora Coral shows thick, branching stalks with compact, pointed corallites. Classified as Acropora sp., it is a small polyp stony branching coral that prefers strong lighting and high, stable water flow. Primarily photosynthetic via symbiotic algae, it can take occasional fine particulate foods, which may support growth and coloration. Place high on rockwork with ample space from aggressive neighbors, and maintain stable alkalinity and calcium to avoid stress.

Quick Facts

Care Difficult

Lighting High–Very-High

Flow High, turbulent

Placement High

Temperament Peaceful (3–4 inches spacing)

Recommended Parameters

Temp 76–80°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 400–450 ppm

AlkAlkalinity 7–9 dKH

Magnesium 1280–1350 ppm

Feeding photosynthetic (primary), microplankton, rotifers, copepod nauplii, powdered coral foods (e.g., Reef-Roids), oyster eggs/oyster feast, amino acid supplements

Care & Placement

Goliath Acropora Coral (Acropora sp.) thrives with bright light, strong random flow, and very stable water. Target 250–400 PAR under LEDs, T5, or metal halides; acclimate to light over 1–2 weeks by starting lower or using screen layers to avoid bleaching. Provide high, turbulent flow to keep polyps clean and prevent detritus buildup; avoid direct, constant blasts that can damage tissue. Place high in the tank on solid rock with epoxy or gel glue; give at least 3–4 inches of space from neighbors and keep away from corals with sweeper tentacles. Expect encrusting growth before branching and potential shading of nearby corals. Feed small-particle foods (rotifers, reef roids, copepods) 1–3 times weekly and consider amino acids; maintain modest nutrients to preserve color: nitrate 2–10 ppm, phosphate 0.02–0.08 ppm.Keep temperature 75–78°F (24–26°C), salinity 1.025–1.026, pH 8.1–8.4, alkalinity 8.0–9.5 dKH, calcium 420–460 ppm, magnesium 1300–1400 ppm. Use reliable test kits, a PAR meter if possible, and automate stability with an ATO and dosing (two-part, kalkwasser, or calcium reactor). Dip and inspect new frags for pests (AEFW, red bugs); quarantine if you can. Drip acclimate 30–60 minutes. Watch for pale tips (too much light or low nutrients), browning (low light or high nutrients), and rapid or slow tissue loss after parameter swings. Run carbon if mixing with soft corals, perform regular water changes, and adjust flow and placement if you see detritus settling or polyps staying retracted.

FAQ

Frequently Asked Questions

About the TSA Goliath Acropora Coral

Why do the tips of my Goliath Acropora Coral bleach while the base stays colored?

Tip burn often points to a mismatch of high light with rising alkalinity or ultra-low nutrients. Keep alk steady (7.5–8.5 dKH), maintain a phosphate “floor” (0.03–0.08 ppm) and nitrate 5–15 ppm, and provide strong, turbulent flow. Ramp PAR changes slowly (target 300–450 at tips). Verify potassium (~390–420 ppm) and iodine are in range; deficits can blunt pigments and stress new growth.
Can this coral shift between tabling and branching forms in a tank?

Yes. Acropora sp. adjusts structure to flow and light. Broad, laminar flow with strong top-down light encourages plating/table-like growth; chaotic high flow from multiple directions with side lighting drives denser branching. Prevent self-shading by elevating the colony and allowing lateral clearance. Rotate or slightly adjust pumps monthly to avoid single-direction growth and dead zones inside the colony.
How do I lock in deep blues or purples instead of defaulting to green/brown?

Color is a balance of light spectrum, nutrients, and trace support. Use strong blue/royal-blue heavy spectra, but avoid blasting PAR without nutrients. Hold phosphate at 0.03–0.08 ppm and nitrate 5–15 ppm. Keep potassium 390–420 ppm and maintain minor iodine/iron levels via measured dosing or water changes. Stable temperature and alk matter more than chasing ultra-high PAR; sudden swings wash out chromoproteins.
Are there pests uniquely troublesome for this species, and how do I detect them early?

Acropora-eating flatworms and “red bugs” target Acropora sp. Look for feeding bite marks, pale patches between polyps, or skittish polyp extension despite stable parameters. Inspect undersides with a flashlight after lights out; turkey-baste the colony to flush flatworms. Quarantine new pieces, perform repeated dips, and consider a pest-hunting wrasse. If infested, pair dips with manual siphoning and increase observation intervals for several weeks.

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TSA Goliath Acropora Coral

Overview

Quick Facts

Recommended Parameters

Care & Placement

Acropora