Neon Green Goniopora Coral

Goniopora polyps are identifiable at a glance if you know the tell: 24 tentacles per polyp, versus the 12 you'd count on a similar-looking Alveopora. This colony's polyps run a bright, uniform green and rarely stop moving, waving in even the gentlest flow in a way that makes the whole thing look almost fluid. The catch is the genus's reputation — Goniopora has a well-documented history of slow decline in tanks that look chemically perfect on paper, likely tied to trace element demands nobody's fully mapped out, so this is a coral for stable, mature systems rather than new setups.

Care level: Moderate-difficult · Light/Flow/Placement: Moderate light, low-moderate flow, bottom-to-mid tank · Max size: Expanding polyp mat, several inches · Diet: Photosynthetic, benefits from fine particulate feeding