The rock I have in my 10 gal is now getting this brown fuzzy stuff all over it. My fake plants are as well. The tank has been in use for over a month and all the chemical levels are great. Not quite sure what this is. It is brown, a little fuzzy and it is taking over my rock and plants. It will rub off with cleaning but it comes back. This just started a week ago. I have 6 Tetras and one ADF frog in there. Anyone ever have this?
Thanks!
Thanks!