Acropora Echinata

Acropora Echinata key facts

Care level

Advanced

Size

Reaches 15 cm in diameter in aquaria

Temperature

24〜27℃

Diet

Mainly nutrition from symbiotic zooxanthellae, supplemented with powdered or liquid coral foods and phytoplankton.

Lighting

Requires strong light. AlgaeBarn cites successful Acropora keeping at PAR 800 or more. Start newly added colonies under reduced light and raise it over several weeks.

Flow & Placement

In the wild it lives on sheltered reefs in clear water. The thin branchlets break easily, so avoid a direct blast of flow and use broad movement that still leaves no dead spots.

Water Temperature & Quality

Water 22-26C, specific gravity 1.023-1.025, KH 8-12, calcium 380-440 ppm, magnesium 1300-1400 ppm. Sudden swings in alkalinity are the most common cause of tissue loss.

Feeding

Most of its nutrition comes from photosynthesis by its zooxanthellae. Powdered or liquid coral foods and phytoplankton can be offered as a supplement, but stable light and water chemistry matter more than feeding.

Notes

Its resistance to temperature-driven bleaching is very low, so temperature stability is the first priority. WoRMS treats the name as an unreplaced junior homonym. Listed on CITES Appendix II.

About Acropora Echinata

Acropora echinata is a bottlebrush-shaped SPS coral with neat blue-purple branchlets, growing to about 15cm across. An advanced-keeper species — see care tips and FAQs here.

7 things to know before welcoming a Acropora Echinata

1. 1Advanced difficulty level

   Acropora echinata is considered an advanced-keeper coral that calls for solid reef-keeping experience. It's sensitive to shifts in water quality, lighting, and flow, so it's best introduced after you've had success with easier corals.

2. 2Neatly arranged branchlets

   Its signature look is a flattened, bottlebrush-shaped branch lined with tidy rows of slender branchlets. The tips often flush blue or purple, creating a striking contrast against the white-to-cream base color.

3. 3Coloration varies by colony

   The base color typically ranges from white to cream, though some colonies develop an all-over vivid blue. Since coloration varies from one colony to the next, it's worth examining the individual specimen closely before choosing.

4. 4Prefers calm, stable flow

   In the wild it grows on clear, calm reef flats, so it tends to prefer steady, moderate flow over strong turbulence. Avoid abrupt swings in water parameters and aim for a stable, settled environment in the tank.

5. 5Plan space for growth

   Colonies can reach around 15cm across in the aquarium, so leave plenty of room between it and neighboring corals before placement. Because the branches spread outward, keep an eye on contact with adjacent colonies as it grows.

6. 6Careful acclimation on arrival

   When introducing it to a new tank, take time with a slow drip acclimation to avoid sudden shifts in temperature or water chemistry. Keeping lighting subdued for the first few days and gradually ramping up helps the coral settle in more reliably.

7. 7Daily observation matters

   The color and condition of the branchlets serve as a good indicator of health, so make a habit of observing the colony closely each day. If you notice changes such as fading color or tissue recession, treat it as a cue to review water quality and flow.

Frequently asked questions about Acropora Echinata

Q.Can beginners keep Acropora echinata?

A.It's classified as an advanced-keeper coral, so those new to reef keeping may find it challenging to maintain stable conditions. It's best to gain experience with hardier coral species first before taking this one on.

Q.How large does it grow in an aquarium?

A.In aquarium conditions, colonies can reach roughly 15cm across. When choosing a placement spot, allow enough surrounding space to accommodate this eventual size.

Q.Why does coloration differ between colonies?

A.The base color is typically white to cream, but lighting and other environmental factors can influence how each colony's coloration develops. Some individuals even develop an all-over blue coloration.

Q.What water flow suits this coral?

A.Since it naturally grows on clear, calm reef flats, steady moderate flow suits it better than strong turbulence. Avoiding abrupt environmental changes and maintaining a settled tank helps it thrive.

Q.What kind of habitat does it come from in the wild?

A.It naturally grows on clear, calm reef flats. Recreating that kind of settled water quality and flow in the aquarium helps the coral maintain its condition over time.

Useful tools for Acropora Echinata care

Learn more about Acropora Echinata in the encyclopedia

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