Mold or fungus or what?

[La Barbe]

My tank has some stuff that looks like spiderwebs coming off of the gravel and a little on the lower parts of the glass. Dusty cobweb-looking. It hangs up off of the rocks and sways with the current. Any clue what it is?
It's in my small tank with fish that are patiently awaiting transfer to a cycling tank, but It's not quite ready yet. Thanks!

 

[bettabrat]

IDK did you put food or something in the tank and leave it? It could be mold. Have a pic?

 

[Kashta]

Perhaps some hair algae growing there that's collecting food particles from the water column. That would explain the webby or hair strand form and the dusty appearance.

 

[La Barbe]

It's white. Are there other colors of hair algae than green? I used my gravel vac on it and did a water change. A lot of the stuff was surrounding old food particles. Does this mean I'm over-feeding?

 

[rich311k]

It is fungus growing on spoiling food. Cut way back on your feeding.