How many meters of main line should go with a six meter five fishing rod?

If you use traditional fishing: at least 50 centimeters longer than the depth of the water, the shortest line should not be less than 3 meters in order to use.

Taiwanese fishing: the main line is the shortest, from the tip of the rod to the rod handle, eight rings to reach the hand holding the rod index finger position, generally are flush with the rod line, the longest can not exceed the length of the rod 20 centimeters. Suggestion: For a 6-meter long rod, the main line should be 6-10 centimeters shorter than the rod length to facilitate casting.