Originally Posted by Hound

Quoted from a website: (refering to a Power Compact Flo set-up)

Our DIY systems include one ballast for every two lamps, thus creating
a great way to implement dawn & dusk simulation.

My question is if that is correct? I am currently looking to
build/purchase a 36" PCF that utilizes 2-55w bulbs. I plan on having
live plants and want to simulate dawn and dusk by having one come on
just before the other and vice versa and the end off the day. Can I
control each bulb or do I need more than one ballast to do this?
Aquarist resurrected