It used to be just the yeast and tubing going to an airstone, it seemed to be working but i saw yeast moving down the tube so I added a second bottle to make sure none of the yeast was running through the airstone into the aquarium.
Now there is water in the airstone's tubing so I assume it is no longer working.
Can anyone provide any insight?
There are 2 of us
Naldari and Naladari