Hi
@St. Tom, thanks for checking in. I used automated top feed to runoff, six times a day, in coco/perlite, pretty much exactly as described on Cocoforcannabis.com. I don't recall if I was onto Jack's nutes by then, but if not, it was MCII. Some of the solos were ventilated, I can't recall if they all were. I don't know whether it helps, but I now do it for serious solo runs (as opposed to mere pollen plants) whether they need it or not.