Second Grow 3x3 Phlizon 900W

What's up everyone and welcome back for week 5. Thank you all for dropping by! This week has been all sorts of excitement! So I'm going to start off with an alternative technique that i came upon that would suit me perfectly in my needs. I've been tucking some big fan leafs behind the new nodes once they've stretched long enough for me able to do it. They seem to be doing the job quite well. Maybe not as fast as other techniques like defoliation but it at least stresses the plant a lot less. I received my new AC Infinity Cloudline T4 on April 6 and right after coming back from work I wasted no time to inspect the unit and see everything was working properly and it all was working wonders! On April 8, some of my leafs started showing some discoloration like yellowish with some brownish like crust on the edges What deficiency is this? I would appreciate all the help i can get in order to be able to raise some of my own healthy marys successfully one day. I wonder if its a cal/mag issue? Beats me... The yellowish has been showing on both plants but the brownish crust only on the Royal Gorilla's oldest fan leafs. So the next day after arriving home from work i fed my Whiteberry Auto with 2 liters of tap water containing 1.87ml of Big Bloom, 1ml of CALiMAGic and 1.24ml of Tiger Bloom. To my Royal Gorilla i gave her 2 liters with 1ml CALiMAGic and 1.87ml of Big Blom. I decided not use Grow Big because shes green all around pretty well too. I just hope that everything works out and maybe the deficiencies be resolved or slowed down a bit. Maybe i messed it up. Lemme know what you think guys and how much should i use my Fox Farm nutrients. Broke one of the fan leafs on the last day of the week. I noticed they strengthened as soon they bump right back up . Trying to tuck as much as i can but i guess stuff happens right. Hope you all enjoyed seeing this update. Can't wait for Royal Gorilla to get into flowering already. But i like that she remains a little bit longer to get more colas straight up 😁 Happy Easter everyone and stay safe & blessed.