i see a few problems. when you top off your water level, dont adjust ph and then put it in your bucket because high chances are that your ph in your dwc is off and also needs adjusting. you should top off water then adjust ph in your dwc accordingly. also 85 degrees seems a bit tad high temps, this can cause high res. water temps. another thing is STOP folier feeding with just ph water alone!! if you keep doing that your going to flush out nutes out of the leaves. also if you do folier feed only do it once in a while and not often. you would be just fine if you didnt folier feed altogether.