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wwh2694 08-31-2008 08:44 AM

Help Metal Halide inside the canopy.
I am trying to setup a 90 gallon 31" tall tank. I saw a lighting in ebay that you just attached to the edege of the aquarium and it has a hevy duty fan. It comes with 250 metal halide 36" lenght this will fit my 36x18x31 tank. The problem that im having to put that inside the canopy. My canopy has a 9" tall space inside and the back if fully open for heat displacement. Can I use this type of setup? What's your advice?

Jeff.:P:. 08-31-2008 04:58 PM

Re: Help Metal Halide inside the canopy.
I have oak canopy that was 9" originally. I'm using it for my reef tank. I've gone with a retro fit from with (2) 150watt MHs and (2) 55watt T5's. I built up my canopy about 8", because once you put the MH fixture inside you might only have 3" left of room from the water to MH. This way I have 9" of space between the MH and water. People do recommend up to 12" of space in order not to run into heating issues.

heres some retro fits from them.

wwh2694 09-01-2008 10:21 AM

Re: Help Metal Halide inside the canopy.
I saw this light it has 150w metal halide + 2 39w T5. Is this enough for a 90G tall tank.

MacFan 09-01-2008 11:22 AM

Re: Help Metal Halide inside the canopy.
I don't think you need a fan unless it's an enclosed environment. Having a completely open back to a canopy should be more than enough to cool by natural convection.

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