When I first started nymphing, I was instructed by Chuck Fothergill and Georges Odier on the Roaring Fork River in Aspen, CO, in 1975. This is Chuck Fothergill and what he brought to fly fishing:

http://www.angelfire.com/co2/fothergill/crfbio.html

I used his technique for a lot of years, with no indicator, just watching where the tip of the line joined the leader butt, learning variations as the years have gone by. My eyesight required that I use an indicator as I got older. These are the ones I most frequently use:

http://www.rainysflies.com/strike-in...ike-indicators

http://fishairlock.com

https://www.amazon.com/Palsa-Pinch-I.../dp/B000VUB2SI

https://www.amazon.com/Zealand-Strik...70_&dpSrc=srch

There are all types of rigs to use to get one's flies to the preferred location in the water column. Use the one that works best for the situation and conditions one is dealing with. That is a different post.


PT/TB