I recently got a Rose BTA. It wasn't bubbly when I got it and it hasn't been getting too bubbly since I put it in my tank. I've only had it since Friday, so I'm not too worried.

Its about 2 feet under a 150 watt (10,000k) metal halide, two 55 watt compact florescent actinic bulbs. Should that be enough? I have the lights on for about nine hours a day.

I do weekly water changes of 30% of my tank's water, 45 gallon (55 gallon system). The pH is 8.4, nitrite is 0 ppm, ammonia is 0 ppm, and nitrate is 40 ppm.

My clown fish are not pummeling it as of yet.