fuzzy

As seen in another thread my GT from BFD has been having some issues. I see quite a few fuzzy looking white droppings in my pre filters, substrate, and plants. What does this mean? He hasn't eaten since I got him so I guess it could be filter floss coming from my filters but it looks like poop...

I have always purchased Malaysian driftwood. So I decided that I wanted to change it up. So I purchased some beautiful Manzanita a few months ago. I come down stairs to let the dog out and I notice white fuzz on my wood. Is this fungus or mold? My water parameters are fine and i have no algae in...