Sweet Z(kittle)z - Hydro Grow

I was away for a few weeks and I had someone to look after those girls. He came by every second or every third day. When I came back I was positively surprised. They have gone from small to huge oppose to being totally dead. Thank you 🙏 If I was there I'd tied them down much more, but I could not asked that from my caretaker. We had some temperature bouncing going on while I was away. I hope the cold nights and warm days, without someone looking 24/7 after them, did not make too much damage. I see some stretching going on.. Some purpling on the leaf stems too. Phosphorus deficiency? My EC pen broke down and I have to get a new one, fast. The 2 missing weeks targeted EC levels were around 1.8. Normal dosage of nutrients were used from the Canna grow guide. This weeks targeted EC levels are around 2.0-2.1. There was some PH rising on past few days before I came home. PH rising EC lowering, right? Have been giving some more juices this week. Smells good 😎