newbie piping questions - what size return - what size overflow?

[Milad]

Kien thanks for the info on the herbie. I was looking through your threads on your build all morning, very nice!

Why herbie over beananimal? If im going to drill another hole to handle the second emergency then why dont I just go with the beananimal version. Also is your herbie loud at all?

would you recommend your pump for my setup?