Distance bet. bulbs & water surface?
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Old 12-12-2003, 09:46 AM   #1
Davo
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Gday,

I am about to install 5 or 6 x 55w (still undecided how many watts required) PC bulbs with AH Supply reflectors over my 120g tank (4x2x2).

What height should I install the bulbs above the water surface? BTW I have an open top tank.

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Old 12-12-2003, 12:42 PM   #2
GulfCoastAquarian
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Mine are about 4" from the surface.
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Old 12-12-2003, 11:13 PM   #3
malkore
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You really should have a glass barrier between the water and the bulbs. those kits aren't designed to be operated over an open surface, as the humidity can cause problems.
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