Question about my Drop Checker
I've recently added a drop checker to the tank to be absolutely sure that I had 30ppm of CO2. The good news is that my drop checker has been solid green for 2 weeks, so that's given me peace.
However, I've had to take my drop checker out and place it back in the water every few days because the air in the chamber keeps disappearing. I can't find anything online that says this is the norm. Does anyone else have to replace the air in the chamber every few days? The water keeps creeping up, getting closer to my solution bubble. Right now, the water level is already 3/4 up the chamber already!