It's been about 15 days since the little seeds popped their heads from the rockwool. I see pics all over the internet and people are way ahead of where mine are at now. I had a problem with giving too many nutes ( 400 ppm) but I took it down now ( around 200 ppm ). The PH is spot on, always. Is there any reason why they might be growing slow? 800W california lightworks LED Stupid amount of micro pore bubbles in the buckets 35 watt commercial air pump 650 PPM Co2
I would probably have the EC about 0.25 - 0.30, I suspect the high concentration in the res stopped any uptake of water and has basically given the plant a right kicking. Even having the EC at the perfect level it's going to take time to heal. It may be faster to start new seeds, but I suspect they will bounce back given enough time
I converted your EC to PPM and that's exactly where i'm at for all of them. Out of all 4, this one is doing the worst though Those leaves were so badly burnt that I had to cut them off. They easily came off anyway though. The reason being is about a week ago the EC was at 0.57