Which Wavebox? (Or Vortech)

[GreenSpottedPuffer]

Looking for advice...

I am going to buy either the regular Wavebox or the Nano Wavebox. What I am wondering is how much it will interfere with my overflow?

My tank is a room divider with the overflow on the end against the wall. The wavebox would have to to go on the other end that is out in the room (kind of ugly I know ). I am wondering on a 6' tank if this is going to make the overflow really loud. Right now its dead silent (herbie drain). I think if I drop the level in the overflow a little to accommodate for the surges, it will be fine but not too sure.

I was for sure going to get the regular one but then thought maybe the nano is better for my tank. Perhaps I can get a bit less of a surge going into the overflow and also its a bit smaller. But how well will the nano preform on a 6' tank? The tank is shallow which helps at 17" water level. Not much rock in the tank to stop the wave either. Just a few short piles down the middle of the tank.

What is the actual max flow rate of each wavebox? I can't find that info anywhere.

What do you think?