strange stuff on glass diffuser, using DIY jello
So I did the jello DIY and it works great. I have the tubing running straight from my large gatorade bottle to a glass diffuser with a ceramic disc in the tank. After running it a few days, I got some wierd slimy whitish bubbly gunk that began collecting on top of the diffuser. It wasn't anywhere else in the tank, just on top of my diffuser where the ceramic disc is. Wasn't sure what it was, so I just wiped it off and am waiting to encounter it again.
Does anybody have any idea of what this could be? Is it some of the products from the jello/yeast entering the tank? Should I use a secondary inline bottle filled with water to filter the CO2 created from the yeast?
Sorry, but I don't have any pictures.