Firstly I need to confess! When I first joined this forum I thought it was a tad unfriendly, maybe because I am from the UK, whatever I don't know, but to be truthful I couldn't have been more wrong. The help I have had from you lads has been incredible (is calling you guys "lads" offensive in US?, it's a northern England thing an 80 year old man is still a lad , just an old lad). Ok more help needed. My transition from coco to RDWC has been far from smooth,lost a full crop of 8 plants, just un harvestable no bud just light airy leavefy buds. Leaving that aside ( I am going to post a new thread to try and find out where I was going wrong). I have been getting rust along the veins of leaves and just not sure what it is. Please see pics.