Dual battery fuse size?

[Killerpopcorn]

Was curious what size fuses people tie in the Aux batteries positive cable with. I was told to put a 100-125amp fuse at the main battery's positive terminal that feeds to the Dual. I was going to use a blue seas terminal fuse but want to make sure I have it sized right.

Dual is going to sit in the passenger side open space. cable is about rough 6ft at 2awg I think is what recommended.

Thanks

 

[Bumbo]

Fuse is based on wire size. For 2awg 100A to 125A fuse will be fine.

This is a good resource:
Part 1: Choosing the Correct Wire Size for a DC Circuit - Blue Sea Systems