Acropora Echinata Care Guide
Acropora echinata · Saltwater SPS Coral
What Acropora Echinata look like
Acropora echinata exhibits a robust and bushy growth form characterized by its densely packed, branching structure. The maximum adult size can reach up to 24 inches in diameter, with individual branches extending outward, creating a striking three-dimensional appearance. This species displays minimal sexual dimorphism, although some variations in coloration may occur between colonies. Defensive adaptations include the presence of potent nematocysts within its polyps, which can deliver a mild sting to deter herbivores. Unique morphological features include its distinctive axial corallites, which are elongated and prominent, as well as its radial corallites that are smaller and more closely spaced, contributing to its overall intricate structure.
Behavior & temperament
Acropora echinata is primarily a sessile organism, exhibiting limited movement through polyp extension and retraction. It engages in a symbiotic relationship with zooxanthellae, utilizing photosynthesis to supplement its energy needs. This coral species is known for its aggressive behavior towards neighboring corals, often engaging in overgrowth or allelopathy to secure space on the reef. Feeding behavior involves capturing planktonic particles and organic matter through its extended polyps, particularly during the night when it is most active. Its stinging potential is moderate, with nematocysts capable of deterring small fish and invertebrates.
Diet & feeding
Acropora echinata is primarily a photosynthetic coral, relying on the symbiotic zooxanthellae for energy, but it also captures zooplankton and organic detritus from the water column. In captivity, it requires a well-lit environment with stable water parameters and may benefit from occasional feeding of liquid coral foods or phytoplankton.
Behind the name
The genus name 'Acropora' is derived from the Greek words 'akron' meaning 'top' or 'tip' and 'pora' meaning 'to bear', referring to the coral's branching structure. The species name 'echinata' comes from the Latin word 'echinus', meaning 'hedgehog', which describes the spiny appearance of its corallites.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Acropora Echinata?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.
