fungus in stream

fungus in stream

Observation - fungus in stream - Global. Description: what is this dirty white furry fungus which infects streams these days ? It seems to cover all surfaces and vegetation. I guess it is caused by low oxygen or too much nitrate ? I have chosen the freshwater habitat but that seems a bit ironic !

what is this dirty white furry fungus which infects streams these days ?
It seems to cover all surfaces and vegetation.
I guess it is caused by low oxygen or too much nitrate ?
I have chosen the freshwater habitat but that seems a bit ironic !