Rhodactis inchoata – Rhodactis Mushroom Coral

Rhodactis inchoata is a coral animal belonging to the Discosomatidae family, often referred to in the hobby as mushroom coral. It forms disc-shaped, soft polyps, the surface of which is often bubbly or knobby. In a reef aquarium, this coral is especially known for its striking colors and its ability to form multiple individuals in the same growth over time.

Rhodactis corals generally thrive in moderate to slightly calmer flow and low to medium lighting. Too strong a current can prevent the polyps from fully opening. Under good conditions, the polyps expand significantly, and the coral can spread by dividing or growing new individuals in the nearby area.

The species occurs in several color forms. Typical shades include green, brown, red, purple, and various multicolored combinations. Some individuals may form striking bubbly structures on their surface, often referred to in the hobby as a "bounce" style.

Features

disc-shaped mushroom-type coral

soft and often bubbly or knobby surface

can spread by dividing into multiple individuals

adaptable and generally quite hardy species

color forms vary from green and brown to bright multicolored shades

Care Requirements

Feature Recommendation

Difficulty easy – medium

Lighting low – medium

Flow low – moderate

Placement in aquarium bottom – medium

Growth rate moderate

Good to know

Rhodactis corals can occasionally move slowly across the aquarium surface in search of a suitable spot. They can also reproduce by dividing or by leaving small tissue fragments from which new polyps develop.

Suitability

suitable for reef aquariums

generally compatible with fish and most invertebrates

good choice for beginners as well