Nutrients problem?

[Shadow517]

Water my plants yesterday and when I checked them next day saw some brown tips on some of them nutrients ppm 700 but runoff is in the 1000 but actually ph my water lower than usual 5.8 but usually stay between 6.0-6.5 cant really see so I didn't post pic

 

[PE636]

Pretty hard to say much with no info about the grow and no pics lol. But sure sounds like too much nutes. Are they pretty dark green also? Any leaf tips turned down sharply? Maybe use a little less next time seems like a good place to start I would guess.

 

[Shadow517]

3weeks old 3ml cal-mag 4ml micro 8ml bloom started on the second week had no problem till now but ppm of nutrients I put in 700 but the runoff ppm is 1200 am growing in coco do this sound like salt buildup in root zone?

 

[Shadow517]

And it was drooping because I was a little late at watering