Confirming this is cyno?

[luapinicap]

I know I’m not the first or the last to ask this, but this is cyno? It goes away on the sand at night and back when the lights are on. It always stays on the rocks.


Thank you

 

[MnFish1]

I don't think thats cyanobacteria which is a bacterial mat that gets its name from its color 'cyan' (just like the printer ink). Most varieties are purple/red. Now having said that - cyanobacteria is a type of 'blue-green algae' (former name) - they are now known to be bacteria. There are some green strains.

Can you say some more about the 'stuff' - does it disappear at night, and re-appear after the lights are on for a couple/several hours/. (that suggests cyanobacteria). If there is no change during the course of the day (dark to full light) - I would say no. it could be multiple things

 

[luapinicap]

I don't think thats cyanobacteria which is a bacterial mat that gets its name from its color 'cyan' (just like the printer ink). Most varieties are purple/red. Now having said that - cyanobacteria is a type of 'blue-green algae' (former name) - they are now known to be bacteria. There are some green strains.

Can you say some more about the 'stuff' - does it disappear at night, and re-appear after the lights are on for a couple/several hours/. (that suggests cyanobacteria). If there is no change during the course of the day (dark to full light) - I would say no. it could be multiple things

Yea the sand bed will be clean in the morning and then after a couple hours the red will come back on the sand. Now there is red on the rocks which came when the red started on the sand but the rocks still look red and kinda hairy at night.

Maybe it’s cyno and a red hair algae ( if there is such a thing)

Would chemi clean help with the hair algae on the rocks?

I had one gsp frag on my back wall and now all the polyps are closed for the last week because I think this algae is growing on it.

 

[Idoc]

Does it blow off the rocks easily with a turkey baster?
The pics don't look like any "red" to me, it all looks brownish color.
If it is a really new system, I would think diatoms. But if it's an established system with low nutrients, then I may lean toward dinos.