THINKING! its a Magnesium Deficiency

I had the same problem about 2 weeks ago but a lot worse, ended up deciding it was a mag def, so upped the Epson salts and CaliMag, also started spraying the leaves with H2O and Epson salts. This seemed to fix the problem, HOWEVER i did a flush to my two girl 2 days ago and then started showing up again pretty much straight away.
I'm pretty sure this plant is just really Mag hungry and i got a def because of the flush (other plant has been fine the whole way though) in which I've taken measures to fix but i want to double check it is a Magnesium Deficiency with you guys Let meknow what you think!

looks like you are right, what are you growing in and what are you PH ing at

Describe your flush and why you did it.

Flushed both plants down to about 70 ppm, I flushed the plants mainly because i was changing nuts brands and then started them on transition nuts, all from General hydroponics. Grow median is Coco Perlite blend 70/30 and i Ph the last feeding to 6.2, slightly higher than i normal have it, but better for Magnesium absorption. I did find when i flushed the girls i had a very small fungus gnat problem but seems to have cleared after the flush.

Yeah, i think you have it handled.

Grower428 said:

Flushed both plants down to about 70 ppm, I flushed the plants mainly because i was changing nuts brands and then started them on transition nuts, all from General hydroponics. Grow median is Coco Perlite blend 70/30 and i Ph the last feeding to 6.2, slightly higher than i normal have it, but better for Magnesium absorption. I did find when i flushed the girls i had a very small fungus gnat problem but seems to have cleared after the flush.

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i ph as high as 6.8 a couple of times a week, never get mag def, but i put a little cal/mag in the feeds that are at 6.8