I've never had an airstone get clogged up even after running them 24/7 for several years in a cheap-ass aquarium. I can see where they might if they aren't run 24/7, but not if they're run all the time.
StoneMeadow Reviewed by StoneMeadow on . DWC i am building a 40 bucket dwc system my question is do i put a air stone in each bucket or just a air line(no stone), cause a buddy of mine told me that the air stone will kill all the bacteria(and you will want some bacteria) and recommended me to just put a 8in round air stone disc in the 55gal reservoir and it will be fine Rating: 5