Stonfo art. 378 Nymphing Indicator
Stonfo art. 378 is an interchangeable indicator for nymphing and trout fishing in currents, designed for quick attachment and removal from the leader or tippet.
The fluorescent colours provide excellent visibility in different light conditions, while the compact design makes it suitable for delicate nymph rigs without significantly affecting fly presentation.
Thanks to its interchangeable design, Stonfo art. 378 allows anglers to quickly switch between dry fly fishing and nymphing with an indicator when conditions require it.
Technical Specifications
| Type | Interchangeable nymphing indicator |
| Design | Interchangeable Line Signal |
| Colours | Fluo Yellow and Fluo Red |
| Sizes |
Size 1 – Ø 5 mm Size 2 – Ø 8 mm Size 3 – Ø 10 mm |
| Quantity | Pack of 6 pieces |
| Purpose | Visual indication of strikes and nymph rig movement |
| Suitable For | Nymphing, trout fishing in currents, indicator fishing |
| Manufacturer | Stonfo |
Key Features
- Quick attachment and removal from leader or tippet.
- Excellent visibility thanks to fluorescent colours.
- Three sizes for different conditions and rigs.
- Suitable for delicate nymphing presentations.
- Allows easy switching between dry fly and indicator nymphing setups.
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Interchangeable indicators are especially useful when fishing with different techniques throughout the same day. Smaller sizes provide more delicate presentations, while larger indicators offer better visibility in strong currents or when using heavier nymphs.

