I have gotten rooting cuttings down to 10 days in my $11 "Dollar Tree/WallyWorld" home made cloner. I use an air stone and aq pump, and a heat mat with thermo set to 76F. The thermo mat is not included in the bubble cloner price though, or it would be a $36 cloner. Nor is the T-8 light setup and timer included in the price. That would make it a $52 cloner. Nor is the garage that they are growing in. Maybe it is really an $80,000 cloner?