Black DOG - End of flower DWC

I added some epsom salts and lowered the PPMs to 375 (from 420) to try and stabilize the PH of the reservoir. It seemed to help slightly. There was no PH drop today and yesterday the PH drop wasn't as dramatic. I haven't seen any amber trichomes yet, but no rush. I am thinking F68-72 harvest. I have a dehumidifier now, so my humidity isn't spiking to 65-70% at night anymore. Due to the heat, my lights are turned down almost all the way, so each light is at about 150 watts. I lowered the lights to 21" from the canopy to hopefully keep the light coverage close to the same. Thanks for stopping by and Happy growing!