that looks great!
any reason you decided against going with a herbie overflow? seems like you got the perfect setup and situation for it. even if you just wanted to try it, it'd only take two minutes given how you're setup now.
i just ask because i just drilled and setup my new frag tank build with them and it really does work silently and well.
also, at what height do you have the tank at?
can we get a photo from further away from the living room side to see how it looks in the room?
thanks!