kr8zykelley - you are fortunate that all your fish survived the cycle. Having some seeded material probably did wonders though, sucks I don't have anyone I can get some from =(. Originally I bought 4 Giant Danios from my LFS, per recommendation that they were very hearty fish. Unfortunately, two of them died the next morning, and the other two didn't make it much longer. Due to this, I have chosen to go the fishless route. Do you remember what the size was that you got your backing cut to? I'm sure I can just go to PetsMart or something and point out my tank and have them measure it for me haha. As far as the size for the lighting goes, the bulb is a 24" bulb, but the housing for it is 30". I read that Coralife makes either a single, or dual bulb light fixture, either as a T5 fluorescent, or a T5HO that fits the Aqueon BF. I know someone had pictures of it too, but can't remember where I found it at the moment. Try searching on here, I'm sure you can find some threads specific to our tanks and their lighting. Good luck and let me know if/when you decide what lights you are going to replace the stock one with and I'll be sure to post a link to the information I found last time, if I can find it again lol.