[ReeferNoob4ever]

I can dose and get my MG up but by the next day or two it's down. For example, two days ago I tested it at 1350ppm after some dosing. Today it was bellow 1280ppm. Is that normal? Essentially that would mean I need to dose everyday. I use Instant Ocean plain and tests are conducted at 1.025pptx. CA is 400ppm and Alk is 9dkh. PH is 8.3 if that matters. I use kalk in my ato at 1/2 tsp per 2 gallons.