Is this cyano? Red on rocks, brown on sand?

[LesPoissons]

Hey guys, haven’t experienced cyano before. Is this it? Just started in the last week or so? Doing a water change tomorrow, increasing flow- other treatment ideas?
250g tank
Ph 8.3
Nitrate 2.5-5
Phos 0.05
Mag 1365
Ca 400
AlK/dkh 9/3

thanks!!!

 

[revhtree Verified Admin]

Hmm hard to tell! The sand algae looks like Diatoms which should go away on their own.

Does that pink/red algae blow off with a turkey baster? Is it slimy?

 

[LesPoissons]

Yes it will blow off with a turkey baster if you give it a really good blast. Hard to get off the live rock. Idk if slimy is fitting. It’s almost more like an algae?

 

[LesPoissons]

Looking at some of the online videos, it def doesn’t float off easily in slimy pieces with a turkey baster like that. Little tiny pieces flake or disappate with related hard blasts.