help picking reflector to cover 2x4 tank

[pascal32]

I'm looking to move from T5s over my frag tank to a single 250W Radium MH. Why? because I feel MH makes corals look better, and I would like to try out radium's

Frag tank is for Zoa, LPS, mushrooms etc. I have another frag tank for SPS with higher light

For a ballast I'm thinking of going with the M80 magnetic HQI cube from reeflex: http://www.aquacave.com/250w-reeflex...edic-2262.html

Looking for thoughts on the reflector. The hope is to have a single 250 over this tank. I realize the sides will be dim, which is fine for mushrooms and chalices.

goal is to maintain 50-70 par on the outside of the tank

50 gallon Rubbermaid about 4"2 with 10" water depth

max mounting height is 34" from water (that's for the top of the reflector)

I looked at the LumenBrit SE large with is 19" across and 12" deep - I like the reflector, however mounting it directly to the stud over the frag tank puts it at 22" above the water - worried this is like a spotlight and the sides will have no usable lights for corals.

http://www.aquacave.com/detail.aspx?ID=2254

Any thoughts on a reflector with more spread?

 

[pascal32]

some thoughts:

Sunlight Supply Lumen Max Elite Mogul Fixture

14.5”x14.5”x5.3
http://www.bulkreefsupply.com/store/sunlight-supply-lumen-max-elite-mogul-fixture.html

Hamilton Technology Cozumel Sun

20x20x9.5
http://www.aquacave.com/detail.aspx?ID=3130

 

[pascal32]

based on: http://www.advancedaquarist.com/2009/1/review

I'm favoring the LumenArc III

any suggestions on height?

 

[tkeracer619]

Unfortunately no reflector is going to efficiently reflect light onto that surface area.

The Luminarc 3 will give you the best spread but you will loose a lot over the sides of the tank. If you enclose it in a canopy it would bounce some of that light around and into the tank. If the spilled light is not a concern the the L3 is the way to go.

If your crafty you can make a light mover and run a reflector like a lumen max 2 that would give you a 2x2 spread. It moves back and forth to light the entire system.

 

[pascal32]

Thank you for the feedback. I realize the sides are going to be pretty dim,and there will be light spill front to back. ideally a rectangular reflector cover 2 ft front to back with spread to the sides would be nice.

The tank is in the basement so light spill isn't a worry, and unfortunately with the beam layout two pendants is a really hard fit.

I'm hoping to find something that will cover 3 feet of the tank with over 120 par and the side can drop. this will provide 75" of the space for LPS and the sides for lower light.