About the blacklight. They are cool to look at, but do not use it long term. Folks that have blacklights on their system don't run them for more than a minute or two at a time. The strength of the UV
in the light just isn't good for your system.
Instead, consider a system that has an LED
moonlight effect built in if that's what you're trying to accomplish. Blue LEDs give a similar glowing effect without the adverse side-effects of the blacklights.
For a 36" tank, I'd recommend going to a 2x39W T5HO system. This will give you stronger lighting and should make your plants happy, and many of these systems have the moonlight LEDs built in as well.
Look at catalina aquariums, current, sunpod - these are all good namebrands.