Fungus on Algae. Help please!

[Crumbs]

I recently noticed that there is a white hairy and film like development on my macro algae. It has developed over the last week that I have noticed. It covers about 40% of only 1 out of 4 species of algae in the tank and not the others. The algae that it affects is red and bushy. (sorry I dont know the name of the algae or have a pic)

Can anyone please tell me what it might be and if it is harmful or what to do?

To give a little tank history, it is a 220 gal with an oversized filtration (but no uv). Its bin running for about 10 weeks. The stocking is about 45 hermits, 4 shrimp, 1 reef lobster, 1 damsel, 2 conch, 1 mushroom coral.

Ammonia, nitrate and nitrite look to be at 0 ph 8.4

I recently added a chiller and gradually dropped the temp from 78 to 72 deg.

Any help would be appreciated and thanks!

 

[Crumbs]

Come to think of it the best description is that it actually looks like mold. Somewhat transparent and stringy.

 

[drummereef]

Do you have any Halimeda it is growing on? I've had what you are describing grown on some Halimeda that is in my display.

 

[Crumbs]

No, I do not believe it is Halimeda. Ive done my share of google searches with no luck finding the algae species.

Is this something that I should be concerned about? Like I said it is isolated to only one type of Algae in the tank.

Thanks

 

[drummereef]

Hmmm strange. I know the only thing that cured my issues was using RO/DI water, and running GAC and GFO.

 

[Crumbs]

I have bin using RO/DI water although I do not know what a GAC or GFO is.

 

[drummereef]

<a href=showthread.php?s=&postid=10200111#post10200111 target=_blank>Originally posted</a> by Crumbs
I have bin using RO/DI water although I do not know what a GAC or GFO is.

GAC = Granular Activated Carbon
GFO = Granular Ferric Oxide (phosphate media)

I run Black Diamond Carbon and PHOSaR for my phosphate remover.