First grow ever. 4 5 gallon dwc buckets in a 5×6 tent. cheap amazon light( hlg 600 diablo on its way. humidity usually between 50-60. ac infinity 8 inch outtake. ac infinity 6 inch intake. (just using normal controller gonna but the 67). ppm was around 830 in each bucket using half tap water(150ppm) and half distilled water.