Brown film algae

[CWalters]

A few of my zoas have been getting a brown film like algae in them. Every night I have been blowing them off with a turkey blaster in hopes they open up and nothing. I moved them to a higher flow area to see if the powerhead would help and I have seen no progress.

Any other ideas? I have a decent sized colony on a rock that I don’t want to lose.

 

[Mr. Mojo Rising]

pics in white light will really help, algae doesn't normally grow on living coral tissue.

 

[Beachbilly]

If your tank is new phos or nitrate may be high after the nitrate cycle ends it usually stays around 0. Alot of algae lessened after I got my skimmer and also algae I'm 3 months into hobby. Ialso recently took out some live rock periodically one at a time sprayed hydrogen peroxide lightly then put back into aquarium after a min or so after. They say dosing vinagar ramp up 5ml 1st wk then 10ml. 2nd Etc. or vodka helps. The peroxide is practical and fast just be careful.

 

[CWalters]

Tank isn’t new. 1.5 years old. This is the best pic I could get

 

[littlebigreef]

That’s a bacterial infection. You can either dose chemiclean in the system, dip, or do both. That’s not a problem that’ll resolve on its own.