FastBuds CBD Crack and G14

Day 15 (2020-05-24): Some more Blumat adjustments. Having trouble getting things perfect. Luckily the plants aren't drinking a lot yet so there is plenty of time to get it right. Day 16 (2020-05-25): Noticing new growth is light green/yellow. Looks like it might be a Zinc deficiency. Will investigate more tomorrow. Day 17 (2020-05-26): Opened water reservoir to a nasty smell and white growth all on the bottom. Algae I am guessing? Either way it changed the PH of the water to 6.8 which I think is causing Zinc lockout. I flushed the plants with 5.6 PH and cleaned the reservoir and added new solution at 5.6. I also added a small amount of bleach (.3 ml gallon). I am also going to wrap the reservoir in black duct tape to prevent light. Day 18 (2020-05-27): Looks like the flushing and water change worked as the plants appear to be recovering. Top growth is noticeably more green, but will continue to monitor. I ended up cutting a box to cover the reservoir to block light to helpfully prevent future algae growth, along with the bleach. Day 19 (2020-05-28): Both seem to have recovered from the Zinc issue and all growth is nice and dark green again. Will probably look at doing some training tomorrow. Originally was planning on trying ScrOG but I am strting to wonder if it will be effective. The plants are still quite wide and short with not much height, so the net will not currently be very effective. Probably will do some LST for now and maybe some defoliation to expose more shoots to light. Day 20 (2020-05-29): Did some initial LST and defoliation to open things up a bit. Day 21 (2020-05-30): Plants appear to be recovering fine from the LST. I am finding some issue with the PH coming into the irrigation system. It is fine in the tank, but by the time it reaches the plants it is higher (around 1 higher). If I flush about a cup through the filter/hoses, then it is fine. So it seems as it sits in the tube the PH is rising. I wouldn't think there would be any algae growing in the tube since it is light proof and would have thought the bleach would had killed it anyway. Will check filter first.