airstones

  1. L

    Bubbling the res for autodrip

    When I switched from DWC to coco w/ autodrip I kept the airstones in the 20 gallon resevoiur. I love the setup but wonder if I need the air. I clean it every other weekend and it takes several days to get the pH to stabilize. My well water starts out at about 7.8, so it takes quite a bit of pH...