Newbie that is in need of some help!

[chrisANDbarb]

a 400 watt MH would work great for that size tank(hex)

[boaboi86]

Thanks, do i need to have the bulb inclosed or can it be exposed? sorry for all the ?'s

[4G1v3N]

exposed will be fine just make sure you have a good reflector like a parabolic.

[boaboi86]

I have this reflector that is brand new. Will it work fine or shold i get the bat wing type? i have to buy a bulb what do u guy suggest?

[chrisANDbarb]

what kind of reflector is it? what do you plan to keep and what do you want the tank to look like(color)?

[boaboi86]

sorry the pics arent working, but its just a round warehouse style, polished aluminum

[chrisANDbarb]

that will work for a hex. i would keep it at least 12" above the water. what do you plan to keep and what color are you looking for?

[4G1v3N]

Here is a link for the reflector, this one will give you the maximum results with your metal halide. MH Parabolic Reflector Set w/ Mogul Base
If the one you have right now is not like this one that you wont be using the light to its fullest capability.

As for the bulb I dont know if you have a SE mogul base(screw-in) or a HQI(Pin-bulb)base so here is a link to many diffrent types of bulbs.
Metal Halide Light Bulb - Marine Depot - Marine and Reef Aquarium Super Store
As for the K rating that is the color of the bulb, 10k will be Sparkling Ice White, 14k will be Sparkling Ice Blue, and 20K will be Vibrant Blue color. If you get a 14k or a 20K bulb you will not need actinics (Blue bulb). For more info on lighting I suggest you see divers article on reef lighting, you can find it in the article section!
Good luck!
-Jordan

[4G1v3N]

I think that style reflector should work fine for you, The bulb will be the most important item in the lighting setup. Spend your money there, and on a good skimmer!
-Jordan

[boaboi86]

how far away should i keep it!