---
title: Ctenactis Crassa (Ctenactis crassa)
scientific_name: Ctenactis crassa
common_name: Ctenactis Crassa
taxon: Hard corals
conservation_status: LC - Least Concern
published: 2024-01-12T15:03:22.851Z
updated: 2025-11-25T13:58:09.000Z
tags: Ctenactis Crassa, Ctenactis crassa, Hard corals, Red Sea, Marine Life, Diving
url: https://redseacreatures.com/taxon/invertebrate/stinging/hard-corals/ctenactis-crassa
---

# Ctenactis Crassa (*Ctenactis crassa*)

**Taxon:** Hard corals (*Scleractinia*)  
**Conservation Status:** LC - Least Concern  


Ctenactis crassa is a member of the Fungiidae family, commonly known as mushroom corals or plate corals. It can grow up to 48 cm in size. The polyps of this coral are elongated, with an axial furrow that extends almost to the ends of the polyps. Along the axial furrow, several mouths are arranged, but they are not found outside the furrow. This coral is typically found in habitats such as reef slopes that are protected from strong wave action, as well as sandy floored reef lagoons, at depths of up to 31 m. It is often observed on the edges of reefs and is considered to be a common species. Its distribution ranges from the Red Sea to Fiji.

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*Source: [Red Sea Creatures](https://redseacreatures.com/taxon/invertebrate/stinging/hard-corals/ctenactis-crassa)*
*Updated: November 25, 2025*