CreamyGoodness said:Green mold. Like one would get on food that had been left out a few days.
I had black or brownish mold on my very first batch that I suspect was from too much water 2/1 ratio and not letting cool enough as it hasn't happened again
All that being said it didn't grow much from when it formed initially and I harvested with removing the mold and consumed
It was good enough as I am now on my 12th gallon batch I believe