Well. Seeds popped at least. Not too happy with these right now. The Green Crack needed support, never a good sign. Seems to be slightly happier now. The WCOG looks ok, still young, too early to judge. The Blue Dream'matic - not sure what happened there. Looks like it's topped it's self (literally) and is growing all runty. This said, 2nd nodes are coming in faster/stronger as a result.
I think the room was initially too cold at night, temps dropping below 17c - sorted with an oil heater outside the room to bring up the ambient a bit. See how it goes / if they recover.