Miracle grow is ok but there are better one part dry nutes available. I use general hydroponics maxi grow, maxi bloom and in the final stages i add kool bloom, but if you use kool bloom be VERY careful as it is stong. If you have the extra money buy the flouralicios grow and bloom as I have had great luck using these nutes and have been growing a long time
vegasgrower Reviewed by vegasgrower on . ppm question hello people, This is probably a dumb ass question. What is ppm? I know it stands for parts per million. But does it have any relevence to the numbers on plant food ie 20-10-20 etc In hydroponics can you just put an off the shelf nutrient like miracle grow in the water at the correct levels or must you use what to me seems complicated ferts. Thanks for any help you can give Cheers :D Rating: 5