HELP- Newbie‘s 2nd grow—leaves turning brown during flower

[Car86]

This has become progressively worse over the last 2 weeks. I thought at first it was just fan leaves dying during flowering and possibly normal. However it has spread. Hydroponic grow with a steady pH of 6.0. Is it nutrient burn or something else? Can I save my buds?

Thanks!

 

[SoOrbudgal]

Looks like lockout I'm not hydro but root rot slimmy how old are they?

 

[Canuck147]

If those were my buds I would take one and slowly bend in half to see if the brown has gone inside the buds. If its green inside your good - brown is bud rot/mold.

 

[RFheavy]

What's your ppm at? 1450+ and my leaves are frying.

edit: Also, what are temps in the bucket?