Friend's Tank has Red Orange GHA? or Cyanobacteria?

[danR777]

She has tried to up her water changes to reduce phosphates, it is coming back with a vengeance:

It is everything in the lower bottom all over the sand. super THICK like what would grow in an ATS...

She has an IM40 NUVO AIO, so no skimmer for Chemiclean or Phosphate-E or anything like that.


What is you opinion on what that could be? she has been vacuuming it out, cleaning rocks.. still comes back

Her phosphates & nitrates are pretty elevated..

She did an ICP about 1.5 months ago (attached pollutant info) (she has been religiously doing water changes every 2 weeks about 20%) since and has gotten the nitrate down to about 15) no change with this growth.... It starts out looking like DINOs in my opinion, but then turns into GHA?

 

[Reefkeepers Archive]

She has tried to up her water changes to reduce phosphates, it is coming back with a vengeance:

It is everything in the lower bottom all over the sand. super THICK like what would grow in an ATS...

She has an IM40 NUVO AIO, so no skimmer for Chemiclean or Phosphate-E or anything like that.


What is you opinion on what that could be? she has been vacuuming it out, cleaning rocks.. still comes back

Her phosphates & nitrates are pretty elevated..

She did an ICP about 1.5 months ago (attached pollutant info) (she has been religiously doing water changes every 2 weeks about 20%) since and has gotten the nitrate down to about 15) no change with this growth.... It starts out looking like DINOs in my opinion, but then turns into GHA?

What's the texture like? Does it act/feel like GHA? I don't think it is GHA personally

 

[danR777]

What's the texture like? Does it act/feel like GHA? I don't think it is GHA personally

I meant more like turf algea I think. Like mushed up saturated Nori but more stringy ? And it’s red and orange all over the top of it

 

[danR777]

Bump )

 

[Reeflix]

I would guess lyngbya, though I am not sure of it can grow in the sand

 

[Jekyl]

Better photos using white lighting will help. Usual coarse of action is manual removal, managing parameters, ensure proper cuc. Beyond that, we need better photos imo.

 

[danR777]

Some more. Will take better if not good enough