Lighting advice for a 120 gal..

[illuminum]

Hey everyone. I was wondering if you could enlgihten me on some lighitng questions. I am about to purchase a 120 gallon SW tank that's already established. It has an aquamedic MH setup and I was wondering what kind of coral or clams I could successfully keep with these lights? I'm pretty sure that they are two 150 watt 13000º K bulbs. Here's a pic that shows how far the lamps are from the water. The tank water's depth is about 54 cm.

*Pic is two posts below*

 

[MattP725]

pic doesn't work... for the record 300w isn't much at all in a 120g tank... you are averaging a bit above 2w per gallon which is the lowest level of acceptable anything if not below acceptable. Def not good for corals. Are these the only lights or are there combos?

 

[illuminum]

These are the only two lights. Could I swap out the bulbs for higher powered ones?

Here's the pic

 

[MattP725]

I believe it depends on the ballast ratings so the answer is usually no. SOmeone on here could answer that better though.