Hoping some drop-checker users can help me out. I've tried researching this online and haven't come up with a definitive answer. Once you fill the checker with solution, how long do you keep it in the tank? Some said it should be about 2 or 3 inches below the surface. Would you then remove it prior to a water change? (as this will lower the water level beneath the checker)... The other question is simply how often do you replace the indicator solution?
Thanks,
Andy
Thanks,
Andy