I have results in mg
/l. Water tested 236 mg
/l. Bottle says 1 ml in 25 gall equal 1.75 ppm k
. So if I have 100 gall water in tank 1 ml raises k
. Is this correct? That meAns my tank needs over 200 ml of coral colors b by Red Sea if I want to go from 236 mg
/l to a minimum of 350 mg
/l. Any thoughts?