Since you're DIYing your CO2, yer gunna do DIY ferts aintya? Sorry, back to topic.
You should have an empty bottle somewhere in line between the slurry bottle and the aquarium for a gas separating chamber. It will at least help you to keep from getting yeast and sugar mix into the tank.
You should have an empty bottle somewhere in line between the slurry bottle and the aquarium for a gas separating chamber. It will at least help you to keep from getting yeast and sugar mix into the tank.