Quote:
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Originally Posted by Bob_I
Tony hit on something I had not considered. As both my tanks are close to cube shaped it should not matter. I did notice with a little experimentation that the ripple effect changes dramatically with the height of the bulb above the tank. I have found that with the height about the same the ripple effect is the same.
Unfortunately that still leaves the original question; Why is the perpendicular orientation recommended.  |
the shape of the bulb. you can shift it closer to the back and get full coverage to the sides. as because of the base at one end the bulb will project farther to the opposite end and then on the sides it will have the greatest projection. so since most people are running tanks that are 18" front to back (at the time when this was set as a rule) and 4 foot long you get the best coverage bay moving the base of the lights to the back of the tank.
here is a pic to better describe what I mean
Steve
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01-20-2005, 02:49 AM
Linear Mode
