Welcome to TPT!
I like the setup! It has some great potential if you fixed a couple things.
Definitely don't turn off the filter at night, that will cause loss of bacteria resulting in cloudy water. The fluval 106 will be great for the water quality, I have the 206 and it works great. I recommend seachem purigen for chemical filtration as it has made my water crystal clear combined with the canister filter.
The hair algae,(another cause of cloudy water) is caused by the light. You have wayyyy to much light without pressurized co2 and EI dosing of fertilizer. SInce 20longs are only 12 inches high, the PAR at the substrate is extremely high. You either need to raise your current light 12 more inches up, or use a single tube t8 for more appropriate lighting for a low tech tank such as yours.
Hit me up with any more questions!
EDIT- I have my fluval in my bedroom, and I can't even hear it when it is inside the stand. The humming sound is very low
Last edited by mitchfish9; 01-07-2013 at 05:23 PM.