Hello, look at the chart for GH nutes in the thread http://boards.cannabis.com/showthread.php?t=20155
you have to convert ppm in EC, knowing that if EC=1, there are 500 ppm, and from gallon to liter. That's easy. For clones or seedlings, i run an EC of 0.7, for 3 weeks plants, EC=1.8, and so on but look at the chart. Your values are too low IMO.
Fhydro
fhydro Reviewed by fhydro on . E.C Levels from vegitive to flower :( Could anyone give me an idea what level my e.c reading should be during vegi stage to flowering. What levels do you increase it to as the plants progresses? At the moment my clones are 3 weeks old and my E.C reading is .8 - .10 By the end of the week i'll increase it to .12 - .14, and gradually to .20 before flowering. Is this correct? :confused: cheers. Rating: 5