Hi everyone having major issues with cal and mag because the tap water is like 15mg/l of cao3 ive used algamic but there isnt enough of it so have a calmag have been using it for the last 3 feeds at 1ml/l but still cant get threw it i will have a ppm meter to see where the problem is tried epsom salts aswell how much ppm should i add the calmag with the tap and then the base nutes they are in 3 week flower need to resolve it the water is drinkable but jiust very soft ph is stable 6.3 going in same going out temps are good by roots 22c to 24c top colas 26 to 27c