rust colored algea

[harman]

anyone seen rust colored algea on rocks, like coraline algea is dying. all water tests look great. tank has been up for a year with no problems!

 

[fireeater]

Does it look like this?
I have it on some of my rocks. It is not the purple corraline dying.

 

[travis truman]

um..........ive seen pics about that stuff and I hear its way bad........it kills everything from what ive heard

 

[wrassecal]

FireEater - pics can be decieving but yours looks like red slime to me.

 

[fireeater]

This isn't the red slime. I have and still am to some extent battling that. I'm winning though! hehe
I only have this in 2 spots on different rocks. It does not blow away like red slime and grows very slowly.

 

[harman]

i had trouble with the red slime, and i used chemi-clean. it was gone in 36 hours. the rust colored came about 6 days after that. i had also just changed my light from 2/ 48" 40 watt bulbs, to 4 55 watt compacts, and 1 175 halide.

 

[demosthenes]

FireEater, that looks to me like some sort of encrusting sponge, but I'm having a hard time with the color. It's not the picture, it's my color-blindness. LOL. Anyways, some sort of sponge would be my guess.

 

[harman]

i found that it blows off the rocks with turkey baster and can be rubbed off of coraline algea

 

[fireeater]

Yes the red cyno can be blown off anything.
The stuff in the pic is not red cyno and is growing on the rock.
I agree with Demosthenes, that it might be some sort of encrusting sponge.