Brown Fuzzy Fungus on Driftwood
I have been noticing a brown fuzzy fungus growing on parts of my driftwood (pictures soon). My plecos won't even clean it off.
My tank is 90 gallons half planted with angels, cories and plecos. I have had this up and running for almost 3 years and have not added anything is months.
I am concerned the fungus might kill my fish. Any ideas? I do 50% water changes 2 times weekly with 50/50 RO/Tap. Temp is 83 degrees (F). I have 2 Fluval 405's filtering this tank. Lighting is just a T8 growth light as it is a low-tech tank. Bulb is only 3 months old running 10 hours a day.
As I said, all was going well until a couple weeks ago, but nothing added in months.