Brown Soft leaves- pics

Started yesterday only on one bud site. Started with one leaf and is slowly going to others. the leaves feel very soft like cloth almost. Did a res change yesterday and noticed it soon after. It is sitting in a 5 gallon DWC with about 3 gallons of water. Using GH Micro/Grow/KoolBloom and Botanicare Cal Mag Plus. PPM is around 1200. It is about 3 weeks since i turned on 12/12 if i remember right. PH is 5.7 as of last night.

looks like it could be a magn. defiency try some epsom 1 teaspoon it wont do no harm if it dont do it any good

talon90 said:

looks like it could be a magn. defiency try some epsom 1 teaspoon it wont do no harm if it dont do it any good

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Eh, this is my first grow but the Cal Mag and GH Micro has tons of magnesium?? Plus the way this progressed over night from a spot on one leaf to all those leafs just makes me doubt its a mag def. Plus its only effecting that one bud site.

remyaz0 said:

Eh, this is my first grow but the Cal Mag and GH Micro has tons of magnesium?? Plus the way this progressed over night from a spot on one leaf to all those leafs just makes me doubt its a mag def. Plus its only effecting that one bud site.

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Dont get me wrong I appreciate the advice and maybe I did not give enough details just from what ive read on magnesium deficiency it doesnt seem right.

Still confined to this one stem everything else is 100% normal looking around maybe a phosphorous? Still doesnt seem right my nutes have a very high phosphorous content??