Any idea what this is? It looks like little short white hairs. It was growing in the shadows of my tank. I turned the rock over to see if light to kill it, but I’m not really sure what it is.
PH 8
Am 0
Nitrite 0
Nitrate >10
Cal 420
Phos .02
PH 8
Am 0
Nitrite 0
Nitrate >10
Cal 420
Phos .02