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View Full Version : do you need a 48" MH for 48" tank?


StrategicReef
11/07/2007, 10:07 PM
If you are putting the light across the width of the tank, sure.

What if you decided to hang it from the ceiling.. could you use a 36" fixture? How different is the 2 bulbs spacing on a 36" vs 48" tank?

I ask because I see the pictures on this forum for pendants and they do not span the width of the tank at all.

rcerulli
11/07/2007, 10:21 PM
each MH bulb covers 2 feet with no issues and can spread to 3 feet if high enough