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One of the metal halide ballasts became problematic this week. I noticed about a month ago that it was occasionally not lighting the bulb on the left end of the reef, but with a little tinkering it resumed as expected. By tinkering, what I mean is taking down the ballast, cord, socket and bulb and hauling all of that into the kitchen to test it in a different outlet, and naturally it turned on just like when you take your car to the mechanic and everything works perfectly.

Last week, ...

Last year, I posted about the upgrade from single ended metal halides to TwinArc bulbs. I used the same reflectors and ballasts, but could now have 20,000K lighting for a few hours and 10,000K lighting for a few hours, daily. The best of both worlds, right? http://www.reefaddicts.com/entry.php...l-halide-bulbs

10 months later, I knew it was getting close to the time I needed to get new bulbs, and I was really debating what to go with: upgrade to all 400w bulbs ...

These images were resized only, no color adjustment. These images were taken under the new ReefBrite Twin Arc bulbs running 20,000K. 250w - 400w - 250w cofiguration. Since the center of the tank has a huge glass centerbrace, the 400w helps punch through the glass.

The Sea World acro is starting to grow on the glass already.

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