Okay, I feel really, really dumb asking, but how exactly do you change the flurescent lights on an aquarium? I'm no good at the hardware stuff, and cant figure it out. My sis has tried to help me, but she's at a loss too. If anyone could help me out with this, I'd appreciate it muchly as it will save me the humiliation of havig to go crawling to the BF for help... yet again.