Hashyanswered grow question 3 years ago Hi there. Did you flush the coco 1st, flushing 1st with ph water until run off ec and ph are similar to whats going in. According to the diary you have been feeding an ec of 1.0 and seedlings don't need that much especially autoflowers. Your coco may contain a higher level ec then your using and may not be buffered to correct ph. Collect runoff and then catch 100/200ml near the end and check ph and Ec it should be similar to whats going in.