They look fine, but you need to get the lights much closer, get them within 2 inches, or just put the LED light down so close its almost touching. Honestly they can't use as much light as you are giving them yet, they would grow as fast and just as well under a 6 watt cfl on your kitchen countertop. Temps can go as high as 85F with no harm and as low as 60F, some strains may vary. You also do not need the fan on until those plants have some height, 6 inches or so. Give them no more than 400 PPM nute solution for now until they show 3 rd set of leaves, then up it by 200 each week until they either show nute burn or you are at 1800+ ppm. Just drip your water onto the top of the rockwool, but cover it all with aluminum foil/panda film etc so the rock wool is not exposed to the light. If its exposed it will turn green with algae.
Hey Nodrama, thanks for your post really helped me a lot and was simple and comprehesive. I appreicate that a lot man!!
im using bottel Poland spring water which has a ppm of 150-200-ppm, i was planning to introduce nutes in 10 days or so in order to avoid giving my babies nute burns..
so what do you think if i remove the cfl ballast for the time being and simply hook up the led right above the plant about 2" of the top and hook up the cfl ballast as soon as i start adding nutes?
my temps range between 75-82 at cannopy level , so far i have the duct fan and 2 occilating fans running, I turn the duct fan off at night and simply leave the window open keeps my girls at a nice temp and allows a litte humidity to build up, i just got a humidifier and place it right next to the intake giving me 35-40% humidity at cannopy level. water temps are around 74ish but creep up to 80 sometimes, i simply fill up a ziplock bag with ice and a little water and dump that in the tank, within minutes the water temp drops back to where it should be..
One of my plant already grew a root alll the way to the reservoir as the second one isnt even showing out of the botton of the basket any idea whats gong on with it?
hope to hear back from you soon!!