RedBeardy5
Active member
I hear soooo many conflicting point of veiws on the correct ppm of cal/mag to add to your rough water. If your using a coco specific nutrient such as canna or H&G what ppm should my RO water be before adding nute. I normally got it up to 200ppm but am having magnesium problems this time around. epsom salts did nothing so i leaning towards lockout.