The net pot could be sitting in the water the plants whole life If the water has enough air it will thrive not rot..... AERATION is Key to this tho ...When plants are young I like to leave "no gap" of air Just lot of oxygenated water... When their larger And I move them into my flowering tent I leave about 4" air gap above my 4 Gallon Res That slowly gets larger as my plants suck up water (this is just how I roll there are many ways to skin a cat as it were) The Spattering bubbles The pump creates Keeps the Air A few inches above the surface of the water Completely Saturated ( look under you DWC lid If it's wet and drippy there so are your roots )