I have an air stone in the reservoir, running 24/7

I decided on the two mediums for various reasons, I felt I needed an initial strong base (Coco Coir) due to what I plan on doing with the plant and a medium (Expanded Clay Balls) that would keep light from the rooting area and was also easy to move around or manipulate.

I chose the 15 on/off cycle of water flow through observation. I can generate a lot of heat with x2 600 watts (x2 MH during grow & x2 HPS during flower, is what I will be using), I was initially ( 1 week into grow) seeing a dry-out kind of look with the plant when I was running it at 15 on / 45 off and also at 30 on / off cycles, on the 15 on/off cycle, I am not seeing the dry-out look of the plant when thirsty so-to-speak... grin!

I will probably switch to a constant flow of water (During lights on) when the root mass has flourished nicely through all the expanded clay balls, as I will not need to worry as much (I hope) with what roots are left on the Coco Coir...

What is it like running a constant water fall system stinkyattic?

As mentioned above, I plan on switching to a constant flow myself.

Can I jump up and dopwn with you soon - grin, as I will be on board with you later in my grow stage...

Cheers mate!

P.S. I'm only using x1 of the 600 watt MH on the little fella atm.