White Fuzz on Bottom of Live Rock

[jaysauce]

I have some white fuzz growing on the bottom of my rock (see photo) and I was wondering if anyone can help me figure out what it is? I tried searching but couldn't find a definitive answer. I am running carbon and GFO. Phosphates are 0 and nitrates are ~5. Tank has been running for a little over a month. I have been dosing vodka and MB7. Starting yesterday, I stopped dosing vodka based on the Item 5 Algae/Bacterial Reaction observations from this article...Probiotic Reef Keeping: MB7 and Vodka dosing instructions and tips. - Rimless Reef.

Does anyone know what this is and how to get rid of it?

 

[CJO]

Are they tiny sea fans? Looks a lot like the ones I have. They feed off of phytoplankton and zooplankton in the water.

CJ

 

[jaysauce]

Are they tiny sea fans? Looks a lot like the ones I have. They feed off of phytoplankton and zooplankton in the water.

CJ

It doesn't look like it. It looks like a white hair. Kind of like mold.

 

[jaysauce]

Anyone else know what this is?

 

[CJO]

It could also be a sponge, in which case it is likely beneficial.

CJ

 

[jaysauce]

It could also be a sponge, in which case it is likely beneficial.

CJ

Would any type of sponges wave with the current? The only sponges I have seen are more firm. Also, it looks like every rock in my tank has this stuff on the underside. I'm not doubting you as it could very well be a sponge but im just trying to describe it a little more so maybe someone knows exactly what it is.

Thanks!

 

[shred5]

Probably some sort of hydroid. I can't make out what you are looking at in the pic.

 

[jaysauce]

Probably some sort of hydroid. I can't make out what you are looking at in the pic.

See photo with arrows pointing to a white area beneath the rocks.

 

[CJO]

Any way of getting a closer picture?

CJ

 

[jaysauce]

Here is another pic of the fuzz on the bulkhead nut. Hopefully you can see it.

 

[rcmike]

I have some of the same stuff and have had it for years. It's not a sponge and doesn't look like any hydroids I have ever seen. Just looks like very fine hairs on the bottoms of the rocks.

 

[jaysauce]

Are you/were you dosing vodka running biopellets?

 

[rcmike]

I just started running biopellets last weekend but I had this stuff years ago well before the vodka dosing craze started.

 

[Gitsoe]

I have this also, only grows under my rock work I think its some form of hair algae but it doesn't grow in the lighted areas, and doesn't seem to hurt anything, I have fuge filled with chaeto, skimmer and run carbon and gfo

 

[secretreefer]

same here. I Have them on my live rocks. no harm done.

 

[valionfish]

Hello Everyone,
I am new here and I also have this same issue. I have been using an Aquaripure system for the last month and a half or so and I have noticed this build up of almost a jelly like white fuzz under the live rocks. I have no idea what it is. Here is a picture.
It seems to be spreading across the tank only under the rocks where no lighting hits.

I hope someone recognizes what this is and know what we can do to remove it if needed.

Thanks in advance for your help!

 

[zero]

diatom?

 

[flyfish4trout]

I have some white fuzz but it is on top of the rock, is it the same as this picture?

 

[RamsReef]

Any updates??

I have this stuff as well.

 

[saltyfilmfolks]

Any updates??

I have this stuff as well.

I have it under my rocks.