What is this

[Earter]

Trying to find out what red leather looking stuff is not sure if it a coral or a algae. But it's been in my tank for a few years it's not growing fast causes no problems just want to now what it is.

 

[reefwiser]

It looks like a form of coralline algae.
One of the more interesting types.

Coralline - Reef Cleaners

What is Coralline, how do you grow it, and why would you want it is explained in this article.

www.reefcleaners.org

 

[Earter]

It looks like a form of coralline algae.
One of the more interesting types.

Coralline - Reef Cleaners

What is Coralline, how do you grow it, and why would you want it is explained in this article.

www.reefcleaners.org

Thank you.