Goal is to go start to finish in a solo cup. No transplants, and everyone rocks the same veg time.
You can use whatever media you want in the cup, soil, coco, rockwool, whatever. And you can feed it whatever you want.
The cup can not be used to support a plant in a larger DWC Bucket.
@Mikelej14, I have no problem with some creative cup modification as long as the roots do not leave the solo cup. But I think if someone wants to poke holes in it to make a smart cup... cool. I like the thinking. Or even make a nano-DWC res and use a shot glass as the plant holder inside the solo cup? Again I have no problem with that. The whole Idea to me is to see what we can do with a solo cup and a fixed veg time, and compare results.