Thanks, PattyCakes! I love the Fluval 88g! I didn't want to mess around with getting a large co2 tank and an expensive regulator and all that jazz - maybe if I had a larger tank. The 88g comes with everything you need, the 88 gram co2 cartridge, the bubble counter, regulator, diffuser, and hose. I get a little more than a month out of it. I only run it during lights on. Monday through Friday it runs for about 3-4 hours and Saturday and Sunday I run it for the full length of my photo period (which was 9 hours, and now is 6 as of yesterday). The reason is because I leave for work way before the light period starts, so I turn the regulator on when I get home and run it until lights on. On the weekends I'm home so it runs for the full photo period. I usually set the regulator at or below 1 bubble per second.
For the lighting, the Coralife 24" was great on my tank. The 24" has 2 24watt lamps, and I got it to run with just 1 lamp some how (the 10000k). This is the fixture that I had -
http://www.drsfostersmith.com/produ...=1059619251&catargetid=1570177652&cagpspn=pla