Problem, please help

I overdid the calmag this past week and have since been flushing with 6.5 ph water the water has a ppm of 6 I've been using purified drinking water. My run off tested about 5 ph so I need to start getting that up to the correct number. I'm almost sure this is a lockout issue combined with ph. I'm just looking for suggestions to fix this issue and wanted to know if the one with the worst damage is even worth trying to flower. I was going to begin flowering this upcoming week but I doubt it will heal in time. Thanks in advance!

not sure why the runoff ph is 5 if you are flushing with ph 6.5 water, maybe you need to flush it a bit more?

yes does look like Ca/Mg toxicity, leaves are very green

This is why I've switched to organics you can't really mess anything up. I would flush like a mofo then a light feed. Maybe even transplant to slightly large pot.

Here