Problem help

Hi well the leaves started to rust from the bottom up and where the light touches its worst and im usin 15 15 30 @ 900ppm with epsom salt 1/2 tsp per gallon ph 6.8

Are you overfeeding?

They where doing it when i was feeding low ppm so i went with what the site for my nutes said 150 - 200 ppm N wich is about 800 without water ppm mine is 170 so i put it at 900 but tried to lower ph to 6 but the lime in my soil brought it back to 6.8 LOL i was thinking ph fluctuations and i took clones from her not long ago she coudnt handle the stress?

What medium are you growing in? Looks like possible Ca lockout or a def?

I also think its ca lockout but i dont have cal mag so hoping its not im in peat moss and perlite mg

Son of a @$!#& i dont have calcium in my nutes

Oh but its started from the bottom up and what i read its immobile so it cant be calcium