The fuzz started to go away after I hooked the exhaust fan back up. I dumped and filled with Maxigrow and a bit of DM Zone to keep the rez dead. Also pulled the net cups a bit and scrubbed the collars with a bit of bleach. They had already blown up again so I did another root trim and chopped the tops back for a 3rd time in less than 90 days. They are doing much better in hydro than they were doing in soil.