

Sorry for the crappy pics but that's the best I could get.
It's in my heavily planted 10 gallon dwarf tank. New setup (two weeks) combining plants from three established tanks, new substrate, mature AC20 filter, two 10W CFL on 8 hours a day (4 morning & 4 evening), dosing Flourish once a week and Excel three times a week.
As of right now I can only see it on two pieces of the driftwood.
So what is it and how can I get rid of it?