I built my own RDWC and using botanicare line up. (Pure blend, bloom, cal-mag, sweet and liquid karma + silica, aquashield) ppms kept at around 900-1000 after plants matured. ph kept at 5.8. started from clones, vegged for 1 month and now i am at 9 weeks since light switched to 12/12 temps very high on top of canopy, near 95-97 i didnt realize this until a week ago when i saw leaves burned and dried snapping off. these buds are not swelling up unfortunately and i am very worried this crop may be a loss. ): this strain is a 10 week strain so i will give it 2 more weeks, with 11/13 hours, lowered temps to 90s and lowered nutes 1/2 dose at 500ppm. pics on the bottom are from last night. also light timing got interrupted once last week when i accidentally changed light hours to 13/11 on instead of 11/13 off. time was off for 2 days before fixing. I am keeping my fingers crossed that these babies will swell up or im gonna set myself on fire. thanks for looking.
dont you want ph more along 6 - 6.2 in mid bloom for magnesium / calcium uptake? also what are your water temps if your room ambient is mid to high 90's before.