Creek Fishing Oklahoma City Question

Caught this on a 2 inch minnow 3.18 lbs

This creek flows North into lake Arcadia there’s two smaller inlets on the north side of the lake aswell

I lost a second one that was fighting a lot harder when it cut my braid off on a rock.

How long of a leader do you all like on your braid to Flouro setup? I was down to about a foot after multiple re-ties.