Need Help Diagnosing My Babies

I am not sure if it's nutrient burn or over watering. The soil I used is nectar for the gods #4. When I transplanted I gave mykos and a bunch of other beneficial bacteria as well as superthrive for the shock. The first watering was tap water and I believe I went way over the ppm limit. Now I switched to distilled water I get from the store. I am currently using a 250w cob light and a 450w LED viparspectra light in a 3x3 tent. The nutes I'm using is CANNA. When I started using CANNA it started to get healthier but still has signs of burn. I keep my PH at 6.0-6.2. My tent got up to low 90s I am getting a portable ac tomorrow to help regulate What do you guys think?

Im not the most experience one in the boards but based on current run your plants are showing multiple deficiencies like nitrogen, magnesium, potacium and maybe calcium. I would say the issue is the root zone, the nutes may have burned them up a little. I used to try and pH at 6.2-6.3 and ran into a look out. I pH at 6.4-6.5 and I've been having a lot better results. One thing I think is important is the consistency of your oh when growing in soil. I hope some of the other more experienced members shows us the way.