Is this Cyanobacteria? Also weird growth pattern on SPS?!?

[eroc]

Good reefing to everyone.
First time to post, appreciate all the help.
2 yrs in to hobby and 1 yr with this red sea 350. Struggling to keep sand bed clean. Battling this algae over last 6 months. Noted just on sand bed, gets worse throughout day and calms down at night. Don't feel like it has the red tinge color to it of red cyanobacteria but more green and if left untouched it seems to almost clump up into green patches. I have tried chemi clean and did not note any results from it. Cautious on trying again. I work pretty hard to keep sand bed clean but continues to come back. Conchs and nassarius are working to keep sand moving but still never keep up as I clean sand weekly with water changes.
Phosphate .02 -.06ppm Nitrates 2-4ppm. Just wanted to verify if everyone thought it was cyanobacteria or something else and if they recommend another method overcome it.

Also wanted to see if anyone has had this growth pattern for their SPS. It is like squiggly arms coming out of it. It is a cheap green acro, but it doesn't seem right. Alk. 8.3 - calcium 450 - mag 1400.

 

[HankstankXXL750 Verified Sponsor]

Hard to really tell the texture in the picture. Does it lay on the top of the sand kind of sticking to it? If you siphon with a hose, not a vacuum does it come up in sheets leaving most of the sand behind?

 

[Jekyl]

Live phyto worked well for algae and cyano in my tank.

 

[eroc]

Hard to really tell the texture in the picture. Does it lay on the top of the sand kind of sticking to it? If you siphon with a hose, not a vacuum does it come up in sheets leaving most of the sand behind?

It come up in sheets leaving most of the sand behind.

 

[Tamberav]

I get green cyano when nutrients get too low.

Sometimes SPS grow really weird if flow is too low.

 

[gbru316]

I've successfully used this in freshwater before, says it's reef safe:

Blue-Green Slime Stain Remover | Ultralife Reef Products

Use the blue-green slime stain remover to thoroughly clean all slime traces in a matter of minutes. Safe for fish, coral, and macro-algae and nitrifying bacteria!

www.ultralife.com

 

[HankstankXXL750 Verified Sponsor]

It come up in sheets leaving most of the sand behind.

Most likely Cyanobacteria. There are different ways to eliminate it. Can try to get more flow in that area. I was vacuuming it with a small vinyl hose. But decided to try to eliminate it faster and used chemi-clean.