You can be creative here. Over my 125 I have 6 bulbs. 2-110 watt VHO, 2-95 watt VHO, 2-30 watt NO. My hood is divided into 3 sections. The 110's are 48" long centered over the tank (kinda towards the front). The other 4 bulbs (2-95's and 2-30's) run basically end to end.
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This is a top view of bulb placement. I used a piece of 2' x 4' oak (1/2"). Then filled in the ends with the same thing. I remove one of the ends for feeding. I like this because I don't mess with the lights in order to feed. I have nothing in between the water and lights. Seems to work well for me. Good Luck and I hope you understood my drawing. The two bottom lines (48" lights) are centered.
[ April 16, 2001: Message edited by: Tacks ]
[ April 16, 2001: Message edited by: Tacks ]