Is this red algae?

[bmackcw]

This started taking over a nice rock in my tank about two weeks ago. That little brain frag seems to be growing for the first time since I got it 5 months ago, but worried about whatever the red stuff is.

Thoughts?

 

[billdogg]

looks like cyanobacteria to me (aka red slime algae)

Increase flow, decrease available nutrients, and siphon out what you can when you do water changes. It will eventually go away

 

[bmackcw]

Thanks - yeah, I guess that's what it is. It's been in a low-flow zone, and, well, I am a bit of an over-feeder. Thanks for the guidance...

 

[ericarenee]

looks like cyanobacteria to me (aka red slime algae)

Increase flow, decrease available nutrients, and siphon out what you can when you do water changes. It will eventually go away

its cyano bacteria. its not algae at all..