View Full Version : MH bulb positioning

12/22/2006, 08:34 AM
I upgrading to a 130 AGA tank (72"x25"x18") and don't know if I should run two or three 250W MH. The tank have a cross brace about two inches wide. If I was to run three bulbs (SE) how would I position the center bulb without having the brace blocking the light? Tank is mostly SPS and the rockwork is open in the middle of the tank. I just don't know how it would look darker in the middle.


12/22/2006, 10:54 PM
Tough situation. I'd probably run two 400 W bulbs, and raise them up a bit, with a good reflector, if possible. Is the tank 18" deep, top to bottom? If so, 250 W might be fine.