Are there any actinics 20" or less in length?

[Chihuahua6]

I am building a hood for my 47 extra tall and I need actinics to fit inside. The tank is 20" wide. I will also be using one halide single ended bulb as long as my old ballast is still working. Right now I have the Coralife Quad fixture over it temporarily until the hood is finished. Any suggestions on actinics?

 

[BLKTANG]

18" vho itinic.

 

[Fish'InMN]

A PC retro would work as well, as they have 28W/32W dual actinic bulbs, which are a little over 12" long.

 

[Chihuahua6]

Do you have any links to show the specific models? I have been searching but sometimes the measurements are not listed and I can only guess the size according to the wattage. Thanks for your help.

 

[Hobster]

http://hellolights.com/bluelamps.html