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Various Bulb Questions
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Merkley View Drop Down
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Joined: March 30 2004
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    Posted: July 02 2004 at 8:46am

Hi all,

I'm intrigued by the possibility of replacing my horrible twin 24 inch NO Flourescents with a pair of 48 inch VHO flourescents running off of a WH7.  I have a few questions though:

My tank is an ALL GLASS 75, measuring 48 inches wide.  The canopy measure 48 inches wide internally, as it fits over the top of the tank.  Will I be able to fit 48 inch bulbs in the canopy, with the endcaps attached, or is this setup what 46.5 inch bulbs are made for?

About the URI bulbs with the internal reflectors:  Does using them negate the need for an external reflector?

What bulb config would be recommended.  I know I probably want a "blue" bulb and a "white" bulb, but specifically what should I look for.

PS -  I'm going to start off with a pair of bulbs running off of one WH7, with another pair and WH7 to be added later.  This is because of economic reasons, and I figure I can get away with it considering the enormous benefit my tank will see from the first pair right off the bat.



Edited by Merkley
Adam Merkley
Salt Lake City, UT
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Mark Peterson View Drop Down
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Points: 21436 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark Peterson Quote  Post ReplyReply Direct Link To This Post Posted: July 02 2004 at 9:14am
It seems that those tubes were made shorter for just that reason. (I've used a router to cut out 1/4 inch of wood on each end to make tubes fit.)

Internal reflectors do negate the need for an external reflector. I've tried it and the external reflector added no noticable light to the tank.

URI Super Actinic and Actinic White give the best color IMO. I have pics of them on two tanks if you want to see.

Excellent choice, though my next 55-75 gal tank will probably have that pair of actinics with a 175 W MH for sunlight beauty and shimmer to grow good SPS and clams.
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coreyk View Drop Down
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Points: 1756 		Post Options Post Options   Thanks (0) Thanks(0)   Quote coreyk Quote  Post ReplyReply Direct Link To This Post Posted: July 02 2004 at 10:00am
here check this out for bulb color combos ... http://www.hivemind.com/fish/VHOBulb/index.htm ... its really personal pref on the color. i'm not sure which two bulbs i would like ... prob a 03 and a 10,000k or actinic white.

<edit> will the workhorse ballast overdrive 40w bulbs? if so you could also consider a overdriving a 40w 6500k (lowes / homedepot). they are very yellow though.

Edited by coreyk
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