u/telments

I have a 10 gallon aquarium wuth 6 Pygmy corys, 4 male guppies, 1 nerite snail, and 6 ghost shrimps. I had cloudy biofilm on the driftwood when I added it but they turned dark brown and all the plants and everything else has algae/moldy black spots.

What should I do now to get rid of these?

Any advise would be much appreciated.