Chocolate Mint OG + Z&Z

Looks like your on the right track try supplementing her with some cal mag. When using tap water it's almost a must. Also are you leaving your tap water out for 24 hrs to air out? What's your pH like? Leaving the water out for 24 hrs helps burp all the chemicals In the water out. Using an air stone in the water can speed up this process considerably! Cheers and happy growing!

Brown spotting is typical of calcium defeciency, leds can sometimes curve the plant to use more calcium especially during flower. Raise or dim the light a little if possible. Increase your calmag feed I noticed you had this suspicion before. And also remove some of those huge overlapping fan leaves. 🌱👍