Taco Leaf Big Time Help Plz

Hey everything, thanks for the opportunity of helping me on this issue here. So I'm growing Haw. Skunk in a hydro set up ( deep water cultivation ). I've done ebb and flow but this will be my first attempt using a closed ventaliation system using C02 with deep water cultivation. I'm aware of why they fold like a taco but every change I've done hasn't shown any progression. My temp is usually 75-80 (72) as we i wrote this, humidity is around 55 but has been increasing due to the leafs transpiration which has now hovered around 55-65 but i have a fan on a timer that brings fresh hair on the hour for 5 minutes which brings it back down to 55. My light is a 400w and is normally 1 and 1/2 to 2 feet away from my plant. As for Mg I'm using FloraNova which has 1.5% mg and added a secondary additive knows as Cal- Mag which contains an additional 1.2% mg. I'm adding some photos to see what you guys can tell me. Also just as a heads up the pump into each bucket admits alot of air when i remove the cap with the plant think of it as a little hot spring where you see the water bubble up as a small mountain. Would that have any affect? or is it okay leaving it that way?

Next time I'm checking the date of post