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Reflector question

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forsaken541

Well-known member
Joined
Apr 9, 2004
Messages
146
Location
Spokane, WA
Has anyone here made or have any ideas on how to make a reflector? Right now I know I am loosing alot of lighting by not having a good system for getting the light down into the tank. Any idea would be appreciated. Thanks,
Erik
 

Scooterman

Administrator
Joined
Oct 30, 2003
Messages
10,943
Location
Louisiana
I've ordered a sheet of polished aluminum from champion lighting, I then made my own reflector, about $20 or less.
 

dnjan

alveopora
Joined
Sep 9, 2003
Messages
1,585
Location
Seattle
Generally, you want to bend the metal (spectral aluminum is probably best for our purposes) into the shape of a parabola. The light bulb should be placed at the "focus" (high school algebra - you finally find out there was something useful in that class!). With a parabolic-shaped reflector, you can end up putting more light into your tank from the reflector than directly from the bulb itself! (the reason is, that with a properly-shaped reflector the light will be hitting the water surface close to perpendicular to the surface. The closer the light is to perpendicular to the surface, the more of it that actually penetrates the water surface. Light directly from the bulb is only close to perpendicular right under the bulb. The further to the side you go, the lower the angle and the lesss light that penetrates.)
 
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