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CoralSaltwaterIntermediate

Finger Coral

Porites attenuata

Also known as: hump coral, Mustard Branched Coral

A chunky, yellow-green branching coral built for busy reef flats.

Finger Coral
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© (c) Sylvain Le Bris, some rights reserved (CC BY-NC) · CC-BY NC

About

Finger coral (Porites attenuata) is one of those solid, unpretentious reef builders you find tucked into sheltered lagoons and protected reef zones across the Western Central Pacific. Its colonies grow as thick, fused branches with blunt, rounded tips. Less delicate than many branching corals, which gives it a more robust, architectural look in the aquarium. The surface texture is noticeably coarse, and the individual corallites are moderately deep-set, giving the skeleton a pitted appearance up close. Coloration runs toward mustard yellow and bright yellow-green, occasionally shifting to a more muted pale brown depending on conditions, and that warm golden tone is genuinely distinctive on a mixed reef display. In the wild, this species favors calm, shallow water rather than exposed, high-energy reef faces, so moderate flow suits it well in captivity. It does need good light to maintain its color and health, which puts it in intermediate territory. Less demanding than many SPS corals, but not quite the forgiving beginner choice that a hammer or torch might be. For a reefer comfortable with consistent water quality and a solid lighting setup, Porites attenuata is a rewarding, sculptural addition that stands apart from the more commonly kept branching corals.

Frequently asked questions

What water parameters does the Finger Coral need?
The Finger Coral does best with a temperature of 72–82°F, a pH of 8–8.4.
Is the Finger Coral reef safe?
The Finger Coral is generally considered reef safe.