Is a 400 watt mogul to much for a 92 corner?
I would think it will be fine for what ever you intend to keep for corals.
Sure, but it depends on your reflector and how high above the tank you hang it. Hows about some extra 420 nm Actinics?
I run a 14k with a decent reflector and it hangs about 14" above the tank. I wanna do mostly clams and sps.