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jet fixer
07/09/2009, 10:41 AM
How far apart are the two MH lights in a 48" outer orbit?

I was planning on a 65 gallon tank and purchased the 36" model . Now, I'm having second thoughts and was thinking about a 75G because of the extra length and less depth. Depending on the spread of the MH I'm thinking the 36" fixture would work on a 75 if I hang it.

Would I be correct in my assumption?

t4zalews
07/09/2009, 11:41 AM
I have the 36" model...the two halide reflectors are ~8 in. long and they are ~6.5 in. apart.

I switched to a 400w in a lumenarc because I did not like the spread that the fixture had. If you don't mind the narrow spread...the light fixture is great.

jet fixer
07/09/2009, 02:27 PM
Thanks, but that does not really answer my question.

I own a 36" fixture I'm thinking of getting a 48" tank so, I was wondering how far apart the MH lamps are on the 48" fixture. I'll loose so much money selling the 36" to replace it with a 48" I might want to try and use it depending on how the lamps are set up.

Toddrtrex
07/09/2009, 03:00 PM
I have that fixture over my 75, and could measure the distance tonight, but I can say that the 3 moonlight panels are the same size -- goes moonlight panel/MH/moonlight panel/MH/moonlight panel.

I actually wish that the middle moonlight panel was wider so that the MHs would be closer to the edges, but I don't have any issues.

For the time being this picture might help a bit. On the right hand side, I want to say that the MH part ends just to the left of the U-tube in the overflow box.

http://i5.photobucket.com/albums/y189/toddrtrex/Fish%20stuff/hanging1.jpg

Toddrtrex
07/09/2009, 07:00 PM
I just measured mine -- it is 10.5 inches from the outside of the fixture to the beginning of the MH reflector, 15 inches to the center of it.

jet fixer
07/09/2009, 07:53 PM
<a href=showthread.php?s=&postid=15332781#post15332781 target=_blank>Originally posted</a> by Toddrtrex
I just measured mine -- it is 10.5 inches from the outside of the fixture to the beginning of the MH reflector, 15 inches to the center of it.

Thanks Todd that helps alot .
On the 36" fixture the MH reflectors are 7" from the end. with simple math it looks like there is an extra 6" between the MH lights. Looks like I'll need to find a different fixture if I go for a 48" tank.

Toddrtrex
07/09/2009, 08:08 PM
If you don't mind me asking, why wouldn't it work for your 48" long tank? Mine has a center brace (( albeit glass )) and I don't have any issues.

jet fixer
07/09/2009, 09:00 PM
Because of this statement:

<a href=showthread.php?s=&postid=15331512#post15331512 target=_blank>Originally posted</a> by Toddrtrex
I actually wish that the middle moonlight panel was wider so that the MHs would be closer to the edges, but I don't have any issues.

The MH lights should be six inches closer together on the 36" fixture. The T5's on the 36" are 39w and shorter also. the ends would be fairly dark of course, I could put gorgonia or a dendro on the ends without problems. I'll have to think about it.

Toddrtrex
07/09/2009, 09:07 PM
You are saying that you think that sides of a 48" tank with the 48" fixture would be darker? If that is correct, I haven't noticed that at all. I have SPS all the way to the sides of my tank, and they are growing just as well at the others. The T5s are 48" too, so those provide even lighting.

Sure the middle is brighter, with the convergence of the two MHs, but I wouldn't call the sides dark at all.

jet fixer
07/09/2009, 09:16 PM
No, I'm saying the sides on a 48" tank would be dark with a 36" fixture.

Toddrtrex
07/09/2009, 09:19 PM
Ahhhh, I get it now. I thought you were thinking about getting the 48" one. Then yea, the 36 would give you dark sides. Though I think any 36" fixture would give you that issue.

BTW --- if you are still considering the Outer Orbit, I would make sure that whomever you are ordering from actually has it in stock. Current has discontinued them (( and the SunPods. ))

jet fixer
07/09/2009, 09:42 PM
I bought the 36" outer orbit in Nov I was just hoping I could use it on a 48" tank. I'll probabably stick with the origional plan and get a 36" tank.

Toddrtrex
07/09/2009, 09:45 PM
36" tanks are pretty nice. I have a 58 that I love, it is nice not having a brace to worry about.

jet fixer
07/09/2009, 10:16 PM
I like the 58 its just I want a DSB for a jaw fish and enough water volume for a fairy wrasse pair So I'll probably get the oceanic 70 or marineland 65. When I was out looking at tanks I saw a 75E that was reef ready for $250 and really liked it, But I already have a 36" light.