The plants weren't really suffering from lack of water due to the strength of the medium, however with extra water this week they have really been able to flourish. About to start LST on plant 4 and start topping as soon as the 6th nodes pop up on Plants 1 & 2. I think I will need to give Plant 3 & 4 some for CALi-MAGic to help with the potential iron deficiencies.
@capricious from the way they are yellowing I would say its lacking in iron which can be corrected by spraying with chelated iron
I would reccomend a regular feeding of Calmag as well mate
You are in a early stage of your grow, and its no big damage, It may took not so nice, but its way better than having an excess. Plants come back just continue feeding . Ian around 3 weeks she should look great again