My current lighting system i have is
2 x 175watt MH
2 x 110watt VHO actinics
The light are about 10" hanging off the water, so i can still reach in an clean the glass.
But i feel like if i had more lighting or stronger lighting my coral growth would be a little fast.
Any recommendation on what i can do to up the light?
I have thought about drilling a hole in the middle of the light fixture and adding another 175 watt MH, but fear that would be to much heat in the fixture.

This is what my fixture looks like.
Except i have the UV protection plastic

The light sit over a standard 55 gallon with dim~ 48x13x18
The actual light fixtures dim~ 48x11x7