Desktop Fly Tester & Swim Tank for Fly Tying Stop Guessing. Start Fishing with Confidence. Every fly tier has experienced it. A fly that looked perfect in the vice comes alive completely differently in the water. Instead of discovering problems halfway through your fishing trip, test and fine-tune every pattern from the comfort of your tying bench. The PROVING GROUND Desktop Swim Tank lets you instantly see how your flies swim, pulse and track in current, so every adjustment is made before you reach the river. Whether you're tying steelhead intruders, tube flies, salmon flies or streamers, you'll spend less time guessing and more time fishing with confidence. Why You'll Love It Instantly evaluate fly movement and profile Fine-tune materials, weight and proportions before fishing Test everything from 0.5" trout flies to 6" intruders Compact enough to fit on any tying bench Built by fly anglers for fly anglers in Northern BC Simple setup in minutes Version 2.0 Improvements We've refined every detail based on customer feedback. ✓ Built-in nylon leader guides for easier testing ✓ Raised feet to reduce vibration ✓ Taller side walls to minimize splashing ✓ Improved overall finish and appearance What's Included PROVING GROUND Swim Tank 120V adjustable flow pump Built-in leader guides Setup instructions Flies not included. Built for Serious Fly Tyers Whether you're preparing for your next steelhead trip or experimenting with new patterns, seeing your fly swim before it ever reaches the river can completely change how you tie. Small adjustments in material placement, weight and profile can make a dramatic difference. The PROVING GROUND Swim Tank helps you make those adjustments at your bench—not on the water. Perfect for ✓ Steelhead tiers ✓ Salmon fly tiers ✓ Trout streamer anglers ✓ Commercial fly designers ✓ Fly shops ✓ Fly tying clubs Specifications Dimensions: 16" × 6.25" × 4.25" Weight: Approximately 1 kg Pump: 120V, 60Hz (US 3-prong plug) Cable Length: 67" (1.7 m) Fly Capacity: 0.5" to 6" Proudly manufactured and assembled in Northern British Columbia. Setup instructions found here: https://swungflies.com/blogs/blog/proving-ground-desktop-swim-tank-operating-instructions