Custom Overflow idea

[Arob21]

Welcome to imagination station where no idea is a bad idea, unless it's a bad idea.
I'm going to be building 2 custom tanks. I am wondering if this idea is have for a overflow will work or if there is something I'm not taking into account.
This is just a 1min mock up on a random peice of glass i have. The tanks will be 3/4 acrylic and the black sharpie marks are there the holes will be. The cardboard overflow will also be acrylic.
Any input is greatly appreciated.
Tank will be 30Lx20Wx27T

 

[Snoopy 67]

Why the tapered sides? There is enough turbulence in a standard rectangle box to remove particles into the drain. And you gain more slots to drain from.

 

[Arob21]

Why the tapered sides? There is enough turbulence in a standard rectangle box to remove particles into the drain. And you gain more slots to drain from.

I just thought it would help direct water straight into the drain.