I have never been a fan of RW.
That's just me.
Hydroton has superior arreation hands down.
Arreation is key for the wet/dry cycle.
A fan on the substrate is recommended. The sooner you can dry the medium and flood again the better.
I use them but I have a temp control on it, those things can get away from you. I've seen temps as high as 30 C plusZem,
The 'new guy' down at the Hydro store talked me out of getting a heat pad. But when cloning I keep the house thermostat on 80 degrees.
Quite common, I've seen it with pellets all the same size and some with all kinds of a diameters. Inert too, no pH concerns but you can cut a drain hole in bottom of bag and rinse them before you use them (hose in top)Atom dude,
What's Hydroton, and where can I get it?
Garden supply store, but is it real common?