Re: PH controller vs. Drop Checker A drop checker is really valid if the known kh is equal to the aquarium's kh value. Plus the pH probe must be routinely cleaned and recal on a regualr basis, at least monthly recal.. but ultimately.... how does your tank look and are the fish gasping for air on the surface. If everything is lush and flourishing... leave it alone... you must be doing something right
Later! |