Northern Lights, Purple Punch, AK Autos

Rough week, Northern Lights kept getting worse early in the week. I tried upping the cal mag and bloom nutrients but the symptoms kept getting worse. Bought a TDS meter and tested the runoff and it was sky high and the pH was ~5.6 so I flushed her thinking she was locked out, but that really stressed her out too. I checked the runoff the next time I watered and it was even higher than the day I flushed it and the pH was still really low. After flushing the original signs persisted and the tips of like, half of the leaves fried. I’m really not sure what’s going on and I’m not sure she’ll make it. Purple Punch looks like it’s done stretching. The leaf margins are still pointing up, regardless of the light intensity. Checked the runoff and the pH was 5.8 and the EC was pretty high so I’ve dialed back the nutrients and raised the water pH. Didn’t do a full flush after seeing how the Northern Lights reacted so I just did a heavier watering. She didn’t look nearly as stressed from the heavy watering. Hoping I caught that one early enough and she finishes strong. AK auto is looking the best. Starting to show some signs of nute burn and some spots on the leaves so I’m going to dial back the nutrients for her too. She’s getting close to needing the pre harvest flush anyway.