Ok! I got the fans working, after a call to Reefgeek. They seemed stumped. I was stumped.
When I'm stumped, I start taking things apart. So out came the three screws that held the DC adaptor together! Nothing seemed to be loose inside, so I put it back together - and bingo - the fans started to work. Very strange, but must have just been something wrong inside the DC adaptor.
I hooked my new DC-8 up to my aquacontroller 3 and had it enable all the plugs, and plugged the fixture in for some photos!
First off - the fans - which are finally working...
<a href="http://www.flickr.com/photos/30998766@N03/3886009850/" title="DSC_0011 by inktomi, on Flickr"><img src="http://farm3.static.flickr.com/2470/3886009850_80ae235a48.jpg" width="500" height="334" alt="DSC_0011" /></a>
And then the unit off, as I left it last night..
<a href="http://www.flickr.com/photos/30998766@N03/3885212179/" title="DSC_0003 by inktomi, on Flickr"><img src="http://farm3.static.flickr.com/2480/3885212179_8520eb7a88.jpg" width="500" height="334" alt="DSC_0003" /></a>
....and then today, with everything plugged in!
<a href="http://www.flickr.com/photos/30998766@N03/3885212401/" title="DSC_0008 by inktomi, on Flickr"><img src="http://farm3.static.flickr.com/2516/3885212401_4755facbfb.jpg" width="500" height="334" alt="DSC_0008" /></a>
<a href="http://www.flickr.com/photos/30998766@N03/3885212639/" title="DSC_0009 by inktomi, on Flickr"><img src="http://farm3.static.flickr.com/2611/3885212639_261a8272a8.jpg" width="334" height="500" alt="DSC_0009" /></a>
Right now, I have 2 more ATI Blue Plus bulbs in there than I wanted, so I'm going to replace them with ATI Aquablue Specials. Once that's done, this is the order of the bulbs, front to back:
ATI Blue Plus
ATI Aquablue Special
ATI Blue Plus
GE Daylight 6500K
KZ Fiji Purple
ATI Blue Plus
ATI Aquablue Special
ATI Blue Plus
For now, it's just 6 Blue Plus though.