Looking good...as far as co2 I think most only use it in veg as it makes the buds airy in flower ..I think ..and I would only use it right before lights on and while lights are on..if you have a meter you can see how much co2 is in there ..if its not enough then its a waste to use it at that level.I think thats what I remember muddy saying...those lines in the pic are annoying ..when you get a chance pull them out so we can see their real beauty.Remember we are all medicated and lots of grows going on ..takes a bit of time to read all of them

From what I see the hairs are still really white ..I dont start on water till half the hairs are dried up and orange or whatever color they will dry to.