Help identifying what wrong

[Lil Dab]

What is going on with her leafs? Day17. 5x5 tent with hlg 5x5 r spec full coverage light. 6” inline exhaust fan. OF amended with dolomite lime and HF in the center of pot. 3 gal grow bag. RO water only so far. Water 500ml every three days or so. I did just top dress with some more HF because she was too heavy and not enough roots to hold herself up so she was falling over. Leaves may have touched the new dirt. Posted this other places and people are saying magnesium deficiency, septoria, water on leafs burning them or light stress. I really curious what you guys have to say.

 

[namvet25]

Could be from hot ffof or stress when she tipped over.Flush her with plain PH water and no nutes for a week or so.Make sure you PH your water and add 3ml of cal/mag.

 

[MIAutomatic]

Do NOT add calmag, I am not sure why that is a knee jerk reaction for so many growers. All Fox Farm soils come pre-loaded with plenty of calmag, in fact that DL you added at the beginning was almost certainly unnecessary until much later in the plants cycle. With soils you usually don’t need to add any extra calmag until flowering

OF is pretty hot soil, and that might be your problem, made worse by the DL you added. I would keep giving water and see how it goes. Also, do NOT flush, that is gonna fuck up your root zone and water log them. Keep watering as you have been, and don’t give them anything else for at least a few days until you can determine if it is getting better or worse. It’s only showing on the older leaves, so as long as it doesn’t migrate to the younger leaves I think she will recover fine.

good luck and happy growing!