DWC - Explosive Roots overnight, then gone the next day

Hi, looks like your basket is submerged in water. When I did DWC I would keep a gap of air between the basket and the water leaving some roots exposed to air (4-6 in). Also is your water between 65F-69F? If water temp is higher than 69F (20C) you're more likely to experience root rot. I used Bacillus (Hydroguard, Monkey Juice or Root Builder all contain Bacillus in different concentrations) to help prevent root rot. Make sure you're adding enough air with your air stone, your water should be agitating like its boiling. Hope this helps! Happy growing!