Ok, i had to find this link again. Took me forever. But here this is a quick glance of all the general systems.
http://www.simplyhydro.com/system.htm
I've broken them down into essentially 3 principles or categories.
1. Water moving = (NFT/Drip/Wick)
2. Air moving through water = (DWC)
3. Water moving through air = (True Aeroponics/Misting/Sprayers)
Your system is sound. Coco over hydroton inmho.
Also it is possible to combine all three principles into one system. Recirculating deep water culture is an example of two combined principles. All systems pretty much use the second principle in the reservoir.
(Possible Rant)
DWC is my favorite for less is more. RDWC is unnecessary according to multiple opinions here. I have a back up battery airpump that connects into the wall so it knows to come on when power goes out. Costs 3.50 and two d batteries at petsmart. Redundancy can be cheap and a life saver. You never know. Best to be safe right?
Ok, wanted to post a very crude three principle bucket. Excuse me for this.
Roots that make it past the Nft tube, and aero misters can chill and relax in the dwc at the bottom.
I wish I could make pictures like this.
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