Dark spots on leaf help plz

This started showing up a couple days ago at first only on older leaves but it has recently been showing up on newer upper leaves I doubt its rust because temps have been consistently over 73° and it’s only on 1 of my 3 zkittlez it’s an organic grow with watering with 1/2 Tbsp of molasses and 1 Tbsp of Epsom salt every 2 days in a gallon of water(she gets half that water) I’m thinking it may be phosphorous deficiency but I just don’t have any yellowing that would come with that

I would agree based off of the appearance it looks like phosphorus deficiency.


agreed and i would also back off the epsom salt and mollasses… i use those also in my organic garden but once every 1 1/2 - 2 weeks or so… too much of those can cause buildup leading to lockout …

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Thanks guys I’m gonna let my soil dry out a day( just watered yesterday) and use some liquid organic fertilizer to boost phosphorous some people use molasses every watering during flower and my brain said that applies to Epsom salt too so definitely gonna cut down on that

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