Alright i have a walmart 29 gallon tank, it came with everything with it like filter and all that jazz. The light in there now is 30 watts i believe. What i wanna do is add another flouro tube next to the other one, now there is room but i will have to do a little cutting which is no problem. What all do I need to power the tube and where can I buy the equipment? I also would like to know where i can find 2 of those clip things that the tubes hook into. Thnx!