Yeah, you'll have to go with LEDs if you want to go dimmable. The Apex Junior also doesn't have variable dimming ports like the Apex, so you'll need a VDM (about $100).
www.reefdup.com Diving since 2009, reefkeeping since 2007, & fishkeeping since 1987 200g, 75g, & 15g Systems PADI Advanced Open Water
I do like LEDs but they don't make any good options for a single fixture on a 72 inch tank and multiple fixtures are definitely not in my budget right now.
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