The attached pic is of a Skywalker OG Kush 3 weeks into veg from seed. Fimmed 7 days ago. Using Happy Frog soil. Temp constant 80% with 50% humidity. Using reverse osmosis filtrated water. Gave 4 tsp per gallon of BioThrive Grow 4 days ago. 2 days ago started to see discoloration in fan leaves. This morning saw that tips are starting to curl and brown where fimmed. Any help is greatly appreciated!