Heres my internal dilemma- maybe someones got a fix for it. Water is ultra reflective. In our normal tank, we have the light perpendicular for maximum penetration. If we had a light at a 45 degrees (or likely even greater) angle, the vast majority of the light would reflect, and what wasn't reflected would be defracted greatly. So I cant imagine a suitable amount of light would reach the clams. If the light was over top, it would obstruct view, and create a massive heat trap. How do you beat this? What am I not seeing?