so, as you can see I am new to all this. I have a small filter haning off the back, I wanted to know if that will be enough water movement in this small 2.5 tank. I really dont think I am going to beable to keep my lights on for 8 hours at a time either, the thing get way too hot, can some one cleaify the fan thing, and where I can get one. also the liht has I florecent light and a atinic light at the same time with no way to switch between the two, what can I do to seperate the two?