Global FlyFisher. Fly from the pattern database -
All kinds of flies from all over the globe
The CDC & Elk family
...here, nothing there: Sometimes trout and grayling sip "nothing" from the surface. You have tried the smallest parachute in your fly box - size 18. What they are taking is much smaller. You look again into your fly box, and right - there is no "Nothing" there.
Fill up your fly box with nothing here
Tying with CDC