That’s what I was trying to see if you could design. At 25 degrees the tiles will shade a good amount of the coral below it. Especially if I end up putting several frag tiles on the walls. I am out of room on my frag tank so I was trying to get the tiles up on the walls and since they’re zoas, they have no problem growing at a 45 degree angle. They would probably end up running the length of my walls. Depending on how well it works.
Maybe a slight lip around the edges or something so it won’t slide off. What do you think?