Yeah John I plan on taking photo's now that you guys have gotten me curious.
I think if there's one plant on that island that could grow without soil it would be the Cattail, they could thrive on a bowling ball.
That's another good reason to put in artificial cover like the garland I have on it, I've seen small GSH around the edges and the island is over 8ft. of water where the trout like to be.
