Jim, the tank I was referring to was about 24" wide and open top with hanging lights. He just reached around the angle and moved his clams. He did have some strong lights to penitrate that angle, but most of his clams were place toward the back and looking through the angle gave a nice look to his clams. Not as good as from the top but better than looking through streight side.
Thanks for the kind remarks on my holding tank.
Barry