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 ...
Updated 06-16-2014 at 02:58 AM by melev
Good day, Reef Addicts! I have a lot of decisions to make for my new tank set up. (Rimless 60g 24"x24"x24") But there are two larger ones that are weighing on my mind heavily. The first one is my sump location (I'll do a separate blog entry on that) the second is my lighting system. I basically have my heart set on one of two options, but if anyone can convince me to change my mind, then props to them. First option is to have 10 NO T12s. Okay ...
The metal halide bulbs are key to growing corals in my reef. Day after day, the bulbs light up the display and the corals grow. Over time, the bulbs weaken and even shift spectrums, which can result in unpleasant pinks or yellows that make the corals appear ugly... and even worse: algae will grow. The easiest cure is to replace the bulbs. I've been dragging my feet on this project out of sheer stubbornness. I really wanted to change them out when the 400g was back. That's when I have to take ...