Use KLN and Pro Tekt in your aerocloner...I root buds sometime's since I'm real bad at taking clones of every plant a grow from seed...most of the times I pick the winners by the plants characteristics it reveals before flower...but some times I'm wrong. lol
Dude I have never lost a cutting in aero except when left in there way to long and the rez got dirty.
Bleached my rez. Straight Tap ph of 6.4 but hard. No rooting hormone either. Snake Oil for the weak and meek if you ask me. I do need to grab a few new 360 degree heads for my manifold though as there are 3 of them that are clogged up or done for. Probably remove them and see if they are just clogged at the pvc first.