I think you should run the 70w MH. That's not too strong. Keep in
mind you are trying to simulate the sun. With that MH you'll be able
to keep SPS and Clams.


On Nov 12, 6:59 pm, "Pszemol" wrote:
I am thinking about 5-10 gallon nano-reef tank
but I would like to use HQI or Metal Halide lights.
Smallest I have seen would be 75W bulbs - they
seem to be too strong for a 16" long 5 gallons tank.

Have you seen anything smaller than this on the market?
Or nano-reef is destined to use power compact fluorescents?