Oh those are indole-3-butyric acid and I think indole-acetic??-acid..
Common rooting hormones... IBA is the one in Clonex... that shit is hella tight.
Foxy's setup for rooting clones is pretty standard.
If you are forgetful, what you can do is pour a bunch of water into the main tray that holds the plug insert... not deep enough to TOUCH the plugs, but deep enough to keep a nice level of humidity since the heat from beneath is increasing the ambient humidity via increased evaporation rates.