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#1
11-30-2011, 06:21 PM
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You don't really need an aluminum plate to mount the sunblasters onto, you can mount them onto anything really. I had mine mounted in my wooden canopy. Ofcourse if you want to add reflectors they can definitely help. You also can get away using 4 fixtures, 10 is overkill on a 4og. Another cost effective solution is painting the inside of your canopy white as this reflects the light even more!
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Always looking for the next best coral... 90g starphire cube/400mhRadium20k/2 XHO/2x27w UV/2x39w T5/ 3 Trulumen led strips 
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#2
11-30-2011, 06:53 PM
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6 bubs may be enough for your SPS but only the long run will tell. Possibly someone with more experience will chime in.
Hell, 4 might even be enough considering your tank is only 17" tall. If I had those fixtures... Instead of paint inside, I'd look into these Sunblaze reflectors, or might try to make these ones work. Be cheaper. Of course, I'd have at least 3 timers. Maybe even 6. That way there would be a more natural light up and down photoperiod. But I always go overboard. Regardless of the canopy you build; you may need a fan in there if it's wood, or at least louvers if it's metal. Sure will be cheaper annualy over your MH
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#3
11-30-2011, 10:10 PM
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i would either go for 6-8 bulb fixture with the new sunblaster nanotech reflectors
aluminum is good to go for as the sunblasters ballasts gets hot, its a good way to dissipate the heat from the base for higher efficiency on the ballast as well as longer lifespan. The important part is the individual reflectors, they'll make for overall more efficient fixture. Adding a fan to cool ONLY the cold end of the bulbs (the end with the text/logo) is an important part in using T5s for optimum output and lifespan.
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