HELP !!! please

justint420

Member
Im fairly new to this. I did one grow last year n it was ok. Had some issues but expected. I got a grow box it has about 96 sf. I have a t5 4 tube light and 4" booster tans from home chepo. My temp is at 79-80 f. My humidity is a sruggle to keep at 32%

My plants have these brown rust spots on them. It starts on the bottom leaves first n starys at the tip of the leaf. I was told it was a cal mag def. From my hydro shop. But their solution isnt working. I tried spraying a cal mag mix n that didnt help. I tried it wit autothrive that didnt do much either. Im starting to beleive its somthing else. OI used mutes last week at 1-3 ratio. I had in order cal mag botanicare pro gro . I have three plants n all are the same so on one of them i drained the res. N added 6.5 ph water n let sit. Still no real good signs of impro ement but it isnt even 24hr

Please help. I hqve no clue what to do. They r 6 weeks old now

Im posting pics as a comment.
 
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