Thankyou, sadly these are new plants, I've sent you a picture of one of the new seedlings, the other four seem to be ok, but worried about this one, wondered if it was lacking in something, the plant is six days old and the ph in was in the yellow, which I assume is 6, been foliage feeding twice a day with cal mag at 0.5 per litre. My main worry is how do I incorporate the Cal-mag into the feed without pushing up the EC which is 0.6 at the moment. I'm learning but, unsure. What do you think? Thanks