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Red Wiry Algae (Gelidium)
Last updated on November 17th, 2023
About Red Wiry Algae (Gelidium)
Red Wiry Algae, also known as Gelidium, is a thin red wiry macroalgae that clings to rock using a runner that makes it very difficult to remove by hand.
What Causes Red Wiry Algae
Red wiry algae is often sprouted from a small piece that was on coral, shell, or rock that was added to the reef tank. Phosphates and nitrates in the reef aquarium allow this algae to continue to grow and spread in the aquarium. Unfortunately, gelidium generally does not starve with the removal of these nutrients like most other algaes do.
How to Get Rid of Red Wiry Algae
Much like green wiry algae, red wiry algae is dificult to remove. Your best bet is to remove as much of it as possible. You can use a tweezers and a dental pick to pick off as much of the root structure from the rock as possible.
What Eats Red Wiry Algae
It is possible for some invetebrates such as emerald crabs and urchins to eat some wiry algae. Though possible, it does not seem common, and should not be relied on as a complete solution.
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