Nano tank Plant Problems?
I have 3 nano tanks running fairly low tech. i have a 2.5 gallon, .5 gallon, and a .7 gallon (im guessing, it didnt say when i bought it). anyway, the 2.5 is fine, but the others are not. i have some dwarf hair grass and some unidentified moss, which did well for a while. theres also some hygrophila in one of the tanks, some floaters (frogbit, etc) and needle leaf ludwigia (purchased yesterday).
however the past couple of days the plants have been growing what looks like dust (it definitely isnt algae), and looks weird. its especially all over the moss.
i routinely dose the tanks with liquid CO2 and 'plant food' (aqueon). they both have good lighting set ups and everything seems normal. one of them does not have a bubbler, but the one with the bubbler seems worse.
what could it be? how can i get rid of it?