Question: what lb test for trout?
Answer: Generally, light line in the 2 to 6 pound test range for average sized trout (14 to 18 inches) is sufficient. Bump it up to 8 or 10 pound test for larger fish or when trolling. If you're expecting to catch huge brown trout or lake trout, heavy monofilament or braid (20+ pound test) might be required.