When selecting a fly fishing line, consider the weight of the line, the type of fishing you'll be doing, and the water conditions. Match the line weight to your rod weight for optimal performance. For example, if you have a 5-weight rod, choose a 5-weight line. For freshwater fishing, a floating line is versatile and commonly used. However, if you're fishing in deep waters or fast currents, a sinking line may be more suitable. Additionally, the taper of the line affects casting and presentation. A weight-forward taper is a good all-around choice for most situations. Finally, consider the coating of the line - a slick coating helps with casting distance. Remember to check the line's durability and choose a reputable brand for quality.

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Topics covered in this question:

Fishing Line Water Conditions Fly Fishing Rod Weight Taper Coating