eddyred I'm basically using lightmix and coco, adding different types of soil in small amounts, with a bit of nutrihemp and guano, 60% less than recommended. They're lacking nitrogen and surely several nutrients; since the fourth week, they've started to grow slower and show deficiencies, sucking and yellowing at the bottom. I've added a mix of manure with coco on top and started adding 1g of spirulina to the watering; I think they're improving, but it's still early to tell.
Cheers :) :)