Halimeda discoidea

Coin Halimeda (Halimeda discoidea)
Coin Halimeda is a beautiful calcareous macroalgae with distinctive round, coin-like segments that form a striking chain of green discs. Unlike most macros, Halimeda builds its structure with calcium, making it more like a living plant of the reef than a soft algae. It adds unique texture and a natural look to display tanks.

Care Guide:

• Light: Moderate to high

• Flow: Gentle to medium

• Placement: Rockwork or substrate in display or macroalgae tanks

• Experience Level: Intermediate (requires stable water parameters)

• Growth Rate: Moderate

• Special Requirement: Requires adequate calcium for growth and structure

• Benefits: Adds natural reef look, calcareous structure, hardy once established

• Portion Size: approximately 3–4"