I am in week 4 of bloom. Using ebb and drip with clay pebbles. This is blueberry. Temp is 75f. 65rh ppm is 978 ph at 5.2. Lights are 12/12 led. I have noticed the past week my ph drops almost .30. At night I check it drops to 5.3 I then bring it up to 6 so it will run first feeding at that. Then it drops at night. My nutes stay at around 978 +/- now I notice this-no more lovely scent and they are drying to look skinny. I took a few pics. Am I too late is there help?