First you mix the nutrients micro, grow bloom in RO water. Let it set for about 5 min after you mixed it up. The nutrients have a Ph buffer built in so give it a chance first. Take a small amount of your nutrient mix in a small glass and set it aside. Check the Ph and the PPM or sounds like you have an EC meter. Sorry if you want PPM you need to do the math. You take the reading before you add Ph up or Down because that will change the PPM reading and give false readings. If you need to balance the Ph do it now. After the Ph is balanced you add supplements like CalMag Plus or flower boosters if you are in that stage. They will raise the PPM level about 300 PPM each but only in one or two areas. You are after a NPK reading so that is just Micro, grow, bloom. The mesurement you are reading is only good for that period of time.

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Zandor Reviewed by Zandor on . What my meter is reading please help???? :confused: Is this a good meter and am I allright with the nute strength and calmag plus amounts??? 3 mils per gal micro/ 2 mils per gallon gro/ 3 mils per gallon bloom/ 20 mils per gallon diamond nector /1 tsp per gallon calmag plus..bluelab truncheon meter reads EC of 1.4 which is ecx500 ppm =700 EC x 700= ppm of 980 and CF =14 what am I supposed to be reading PPM700 ppm500 or CF or EC ...my water doesn't have a reading on my meter I have RO water My plants are on the second week and just Rating: 5