I vote for angel food too. I am growing in LAVA rock.
the same great rocks used to bake your chicken in the summer will grow me some good bud to bake me in the winter. lol
here are a few pics. they are just 2 weeks out of the napkin.


As you can see one plant is completely submerged during the water cycle.

another is above the waters surface.....but still touching.


yet here is another pic and they are above the flood zone surface and doing good.

I figure flooding them like this also folar feeds them at the same time.
the water is very highly oxygenated.