Day 0 for these...may the growing commence....rockwool has been pre soaked in ph'd 5.5 water as recommended to neutralize the lime content...if you dont do this your plants will turn yellow!!!
Update,
one doesn't seen so well so I will set off the 2 once I soaked some blocks
I had that same thing happen recently TWICE... I thought maybe I was losing my touch lol. Ended up with mixed genetics in both tents and one almost a full two weeks behind but all is well that ends well