Grow Mediums Have a nute question

[Trap]

I'm running GH expert nutes. Ppm bout 650
getting a few nute burn spots on a few leaves but not the whole leaf.. Is this normal? Also what do y'all use and what's the ppm y'all use?..thanks for the help

 

[Torched]

Spots over the leaves are not nute burn. Nute burn starts at the tips and goes back toward the leaf stem. Spots depending on what they are looking like (Do you have pics?) are usually calcium deficiency.

 

[Trap]

Thanks I'll increase my cal mag

 

[Muddy]

I would suggest you post a picture before doing anything so we can see for certain that it's a calcium issue.