White Hair

[maximinimus]

I'm new to planted tanks and I've never experienced this problem before. I started injecting CO2 two weeks ago, since Tuesday this week some white "hair" has been growing on my CO2 pipe and on my java moss:

(clearest picture I could get of the hairs on the outlet of the CO2 pipe)

Water status:

Ammonia - 0
Nitrites - 0
Nitrates - 25
PH - 7.0
KH - 8
Temperature - 24*C

Lighting - 1.5wpg (5h on,2h off, 5h on)

Approx 35% plant coverage at the moment.

I added polyfilter yesterday as I thought there might be an exceous of nutrients, since then my amazon sword has gone yellow and brown algae has covered some leaves. I removed the polyfilter and dosed a weeks worth of nutrafin plant fertaliser.

The white "hairs" seem to be growing only on the CO2 pipe and on the java moss, placed directly under the submerged spray bar feeding the atomised CO2 into the tank.

Anyone got any ideas what this is and how to get rid of it?

 

[RadaR]

Looks like the "white goo" that is a bi-product of using DIY yeast CO2. Nothing to worry about so long as none of the fermentation mixture gets into the tank.
Fish and shrimp sometimes eat the white goo and you can always manually remove it.

 

[Wolfenrook]

If you are using yeast based CO2 kit, then try sticking a bubble counter inline on your CO2 line. This will keep any gunk from making it into your aquarium.

Ade