Can I get some help with ID of this algae

[boozeman27]

Just not 100%sure if this is cyano or dinos or just plain ole red algae. Tank is only 100days old so I’m going thru the uglies still. All my Diatoms are gone and it’s turning to this. I did scoop a patch out a few days ago and put it in some water with some peroxide. It did dissolve it so that means cyano, right? Some patches have tons of air bubbles trapped in them. Also it’s mostly gone in am but comes back thru the day with the lights.
Tank params are @
NO3-2-3
PH STABLE AT 8
TEMP 78
SALINITY 34
ALK 10
CAL-490
PHOS .11

 

[ThUnDeR MoNkEy]

Looks like cyanobacteria to me...

 

[boozeman27]

Thank you. I was going to start dosing h202 tonight at the standard 1ml/10 gallons, but wanted some confirmation .

 

[ThUnDeR MoNkEy]

I suggest just an increase of flow, a little less food, physical removal via siphoning and frequent water changes to start. IME that's all that's needed to clear it up. Just my 2¢

 

[boozeman27]

After thinking about it I agree. No peroxide. What do you think about cutting my nopox is half as part of nutrient reduction? Dosing 10 mls a Day now, I think I’ll cut that to 5

 

[ThUnDeR MoNkEy]

Tbh I have never dosed anything in any of my systems in the past, so I cant advise on that. Hopefully someone else will chime in who is more knowledgeable than I in that matter.

 

[saltyfilmfolks]

After thinking about it I agree. No peroxide. What do you think about cutting my nopox is half as part of nutrient reduction? Dosing 10 mls a Day now, I think I’ll cut that to 5

No pox is bacteria food. All bacteria.

 

[ThUnDeR MoNkEy]

If this is the case, there is your sign. Stop dosing for a bit and see if the cyanobacteria goes away.