Looks like what you have there is a tiny ebb and flow. Altho I guess with a 9 gallon resivor thats not that small. That thing is kinda cute. Id start a grow log with that Darbolah, Id be interested in how that turns out.

Unfortunately Im not to familiar with Hydro setups. However, it looks like it would work, altho I doubt it would be as easy as they make it sound Im sure itd work fine for lst and topping too.