Acropora abrolhosensis Propagation Guide

Propagating Acropora abrolhosensis, a robust branching SPS coral, by fragmentation: snapping branch tips, mounting frags, and maintaining the stable reef chemistry and high light and flow that fragments need.

Overview

Acropora abrolhosensis is a robust branching stony coral in the family Acroporidae. As with all Acropora, the colony is built from small polyps about 2 mm across that share tissue and a nerve net and lay down a calcium carbonate skeleton, with symbiotic Symbiodinium algae supplying energy through photosynthesis. Its sturdy branches make it forgiving to handle during fragging compared with thinner-branched species.

Reproductive Mode

This species can reproduce sexually through gamete release and asexually through fragmentation. Aquaculture and aquarium propagation use the asexual route, because a detached branch retains the parent's genetics and resumes growth once anchored.

Fragging / Asexual Propagation

Choose a well-coloured branch from a thriving parent colony.
Snap or cut the branch cleanly with bone cutters or a coral saw.
Attach the frag to a plug or rock using reef-safe cyanoacrylate or epoxy.
Position the frag in moderate light and flow until the cut tissue seals over.
Quarantine and dip new frags before they reach the display.

Under good reef conditions, finger-sized fragments can develop into substantial colonies within one to two years, so robust species like this one are commonly farmed and traded as aquacultured frags.

Conditions for Propagation

Stability drives success. Because Acropora bleach readily under stress through the loss of their zooxanthellae, fragments need steady temperature, salinity, alkalinity, calcium and magnesium. High light and strong flow promote the dense calcification this branching coral relies on.

Sexual Reproduction

Wild Acropora take part in annual mass-spawning, releasing gametes into the water for external fertilisation and larval dispersal. This is seldom achieved in home systems, so hobbyists rely on fragmentation to increase stock.