quick question about ppm. my ro water is 70-80 ppm at stock, once ive added a little superthrive and 1/4 nuts its on 160. now ive read elsewhere you shud aim for 650-750. how am i supposed to reach that, and if i shhudnt, what is a gd number. i only fed 1/4 strength. before reverse osmosis my water is at 340ppm. plz help im realy confused. thankyou
arthurjob Reviewed by arthurjob on . noob needs help :) hi, this is my first grow and both my first 2 plants have problems. the first is a deformed plant, and has brown blotches on the leaves, and the second is a seedling which at one point fell over and wasnt noticed till morning. it seemed to have pulled thru but today a grey type of fungus has sprung up on the outer part of the first nettle leaves. also the leaves have curled up. im not sure if its fungus r what as i have no experience with growing :( there under a 400 hps at 24inches, in a room Rating: 5