ultra shallow reef for coral propagation?

[MoshJosh]

Just curious if there would be an advantage or disadvantage of using an "ultra" shallow tank for growing corals. My thinking is less water to go through = less light needed/less powerful light needed? What are your thoughts?

 

[Rmckoy]

Im
Sure they already have them
The coral shop I visit they have their frags under only a few inches of water . Im
Sure it’s possible