Wish I new what this is?

[Gary Ellis]

Keeps coming back.

 

[hdsoftail1065]

Looks like cyano, but I'm using my cellphone so pics aren't to easy to look at.

 

[Retro Reefer]

It’s cyano

 

[Hitman]

I agree cyno. Looks like it’s in low flow areas. Suck it out with a tube and increase your water flow should help.

 

[OpenOcean33]

Keeps coming back.

Have you found yourself any solutions to your algae problem ?Best way to identify is a cheap microscope off amazon. I have something I'm trying to get rid of that looks similar.