Help Identify & Treat

[PcDr32]

I need help Identifying and Treating this fungus type growing on my rocks and Sand. I think it might be Diatoms, but can someone confirm? If so how do i treat?

Tank is 55 high with HOB Mechanical Filter & HOB Skimmer. Established 1 Year, 9 months. All my Numbers are perfect. All coral has closed up.

 

[Diesel]

You wanna share your test results?

 

[PcDr32]

Using API test Kit

Nitrate 0
PH 7.8
Ammonia 0
Nitrite 0

 

[PcDr32]

Tetra Test Strips also show all numbers in the Ideal range. I also took a water sample to my coral supplier and his tests also showed spot on.

 

[PcDr32]

Any Help?

 

[Billdogg]

some of it looks like cyanobacteria to me (reddish on the sand). The gray stuff on the rocks is either a bacterial mat of some sort or just a heavy build up of detritus. Treat it with a good sized water change and increasing flow. If you are using old T5's that can encourage the cyano to grow.

 

[Mical]

+1 on cyno - treat it w/ Chemiclean