150 W metal halide double ended bulb suggestions?

[jazonPartij]

I have an aqua medic 150 w MH / 2x24w T5. I'm looking for a new MH bulb. What is the very best the market has to offer? I was looking for a 20k radium bulb but can't seem to find this. Curious to hear anyone's recommendation. I just got SPS corals and they are pretty browned out.

 

[D maul]

Radium is my choice. Marine depot,eBay, and Amazon check them out

 

[jerl77]

Ushio great all around bulb

 

[MOPAR]

I prefer radium, but I also really liked my 14k phoenix.