2 bulb 18" fixture

[The Gillman]

Does anybody know where i can find a dual bulb 18" light fixture to fit my 35 gal hex? I currently have to switch light fixtures to run a 50/50 and 20 K. TIA

 

[loganj]

Not sure about buying one, but it would be easy to build. Have you thought about going with a 32w PC 50/50? Or even a straight pin 36w? Either of these is under 18".