Red on caulerpa racemosa

[Roadkillstewie]

Curious if anyone has seen/experienced this...

It does not rub off, and has a detectable edge/texture... Seems almost as if a red coralline is trying to grow/develop on it.

This started appearing, after removing from the fuge and tossed into fluval spec with a cheap led grow light. The main tank is..6 weeks old, the spec..a month

This piece has been in there, a week approx

 

[twentyleagues]

Cyano.

 

[Roadkillstewie]

Cyano.

IF it rubbed off, and/or was on other pieces Id agree. Neither is the case.

<shrug> We'll see how it develops over time.