Determine Your Vermin
Mouse patterns range from large, articulated ties like Tom Lynch's White Bellied mouse, which requires a 7- or 8-weight rod to cast, to smaller Morrish Mouse patterns that can be fished on a 5- or 6-weight. The one thing all mouse patterns have in common is that they make a wake on the surface, and it's that wake that calls fish in. At night, you can generally get away with cutting your 9-foot leader back to 6 or 7 feet, and using a much heavier tippet, all the way up to 15-pound-test. This heavy tippet works well since fishing in the dark will make the bankside grasses and trees seem a bit grabbier than usual.