What do you think about these aquatiers?

I think they are cool. I think others have posted about shelves in tanks before with the biggest concern being gravel vacs and water movement.

I think they look cool
 
They look great only thing wrong for me is that they are not deep enough to plant with.
 
I was thinking about putting some small stones along the edge to make a deeper bed to plant in maybe silicone the rocks there
 
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