I just bought a cheap ph meter until I can buy a good one. I know that they are not too accurate due to hotspots an what not so I have been testing the runoff water as well as the soil. I haven't used any nutes yet so im not worried about the npk. im almost positive its a micronutrient problem. Maybe a dunb question but can I use the ph down I would use for my jacuzzi? Also... what about dolomite lime or sulfer products? Thanks for your time...
skunkystyles Reviewed by skunkystyles on . soil ph too high I am using an organic soil consisting of Kellogg Patio Plus mixed with 25% perlite in 5 gallon containers. I just transplanted my plants about two weeks ago & I have noticed that I cannot get my ph lower than 7.5. my plants were doing fine until a few days ago I noticed that they were not thriving any longer. in fact they are showing signs of mg and maybe zinc defs. I added some epsom salt to help but I understand that if the ph is off then lockout is the likely culprit. Its too late to remix Rating: 5