How Do You Make an Indicator for Fly Fishing?

Fly fishing is an exciting and rewarding sport, but it can also be a daunting one. Experienced anglers know that the right gear and technique can make all the difference when it comes to catching fish.

One such piece of gear is an indicator, which helps anglers detect subtle strikes that may otherwise go unnoticed. Here’s how you can make your own indicator for fly fishing.

Step 1: Gather Your Supplies. To make your own indicator you’ll need some supplies, including a length of monofilament line, a foam earplug, and a small split shot sinker. You’ll also need a pair of scissors and a lighter or match.

Step 2: Cut the Monofilament Line. Cut the monofilament line into two equal lengths, each about 24 inches long. Tie one of the lines to the split shot sinker.

Step 3:Tie on the Foam Earplug. Tie the other piece of monofilament line to the foam earplug. You can use any type of knot you like, but a surgeon’s knot works best.

Step 4:Heat-Seal the Knots. Once both knots are secure, heat-seal them with a flame from your lighter or match. This will help prevent them from slipping or coming undone.

Step 5:Attach to Your Line. Now you’re ready to attach your homemade indicator to your fly fishing line.

To do this, simply tie one end of the monofilament line to your main line and thread it through the foam earplug until it reaches the sinker. Then tie off securely.


Making an indicator for fly fishing is easy if you have the right supplies on hand. With just some monofilament line, a split shot sinker, and a foam earplug you can create an effective and affordable tool for detecting subtle strikes while out on the water. All that’s left is to attach it to your main line and start catching some fish!

Photo of author

Michael Allen