What is this?

[mpyers]

I have some brown stuff that seems like brown corraline algae. But it seems like it's growing little hairs on it. I don't know if it's just corraline or what? It's all over the rocks. And it seems to out grow existing purple corraline. Ugly.

What do you think?

Sent from my SAMSUNG-SM-G930A using Tapatalk

 

[CafeReef]

I have coraline like that growing on a rock in my sump, it hasnt left that rock in the year that it's been in there. Coraline can come in lots of fun, and not so fun colors.

 

[Betaktical]

Dead coralline catching diatoms and collecting.


Sent from my iPhone using Tapatalk

 

[mcgyvr]

Yep.. Looks like some fuzz algae growing on coralline algae thats growing on dead coralline algae..

 

[AlSimmons]

Does it come off the glass with ease? If not you might want to look into Lobophora algae. While this stuff does plate, it doesn't really start off that way.

 

[mpyers]

It doesn't grow on the glass. Just the plastic and rocks. And it grew on brand new (once dry) rocks first with no corraline algae on them. If I scrub the rocks with a toothbrush it doesn't come off. Neither does the fuzz. I haven't tried anything more abrasive.

Sent from my SAMSUNG-SM-G930A using Tapatalk