I'm quite happy with how the tank is doing, but there are always things to deal with.
Last week, the CO2 solenoid stopped working. After purchasing an entire new solenoid, I discovered that the thing is removable and serviceable. It probably only needed a bit of grease. So, I guess I have a spare part now.
After that, I must not have sealed the regulator on the tank properly, because 3 days later I ran out of CO2 without warning. 500lbs one moment...0 the next. It is always something.
Anyway, for your viewing pleasure. Here's Freckles doing what he does best..blocking the view into the aquarium. His tail streamers are really coming along now.

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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies
My Tank:
http://www.canreef.com/vbulletin/showthread.php?t=28436