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New Zealand Indicator (White/Orange Yarn Strike Indicator)
Yarn-based strike indicator system used for nymphing
"I use a white New Zealand indicator, and they offer orange as well."
The Art of Clear Water Nymphing: A Master Guide for Tailwater Trout and Great Lakes Steelhead
There is a particular kind of humility that clear water demands of a fly angler. Unlike the forgiving opacity of a rain-swollen river, clear water offers no cover for mistakes — every drag, every splash, every poorly positioned indicator is on full display to the fish below. But for those willing to refine their craft, clear water nymphing is among the most rewarding disciplines in fly fishing. You can see the fish. You can watch the take. You can learn, in real time, what works and what doesn't.
With more than two decades of nymph fishing and guiding experience targeting tailwater trout and Great Lakes lake-run brown trout and steelhead, the team at toflyfish has developed a methodical, deeply considered approach to this demanding style of angling. What follows is a comprehensive breakdown of their techniques — from rigging and fly selection to presentation, drift, and fish-fighting — distilled for anglers who want to move beyond guesswork and into a higher level of precision on the water.
Where This Approach Works Best
Not all rivers are created equal when it comes to clear water nymphing. This approach is specifically designed for a particular class of water: clear, relatively slow to moderately flowing rivers ranging from about four feet deep to just inches — where fish populations are dense and visibility is high.
The fisheries that fit this profile include western tailwaters like the Green River in Utah, the San Juan in New Mexico, and the Frying Pan in Colorado — rivers engineered by cold dam releases to produce extraordinary quantities of aquatic life year-round. Also included are Great Lakes steelhead and lake-run brown trout rivers, particularly in Michigan, as well as certain high-density rivers in Alaska.
What these waters share is a fish population that has, to varying degrees, become accustomed to the presence of humans. As the toflyfish team explains, fish on these rivers "are often accustomed to the presence of humans because of the overall production of the river, because of migration such as the spawn, or because of a food source." In some cases, fish will actively use wading anglers to their advantage — a phenomenon known as the sand shuffle — picking off nymphs stirred up by an angler's feet.
This familiarity with humans, however, cuts both ways. Dense fish populations attract crowds, and crowds bring problems. Snagging — the intentional or careless foul-hooking of fish — is a serious and ongoing issue on many of these fisheries. The toflyfish approach is, in part, a conscious response to that reality: a method of fishing that dramatically reduces incidental foul-hooking while improving legitimate hookup rates.
"I've tried to fish in a way that cuts snagging to an absolute minimum. A huge percentage of fish are false hooked when you bounce lead or rake your rig across any fish available. Pick your shots and move on to active fish or change something with your rig or fly."
Mentioned in This Article
Loon Outdoors Aquel Fly Floatant
Fly floatant gel used to help yarn indicators float on the water surface
Rigging for Clarity and Precision
The nymphing rigs used for clear water fishing are elegantly simple, but each component serves a deliberate purpose. The foundation is a small split shot positioned approximately 12 to 18 inches above the fly or flies — close enough to get the fly down efficiently, far enough to allow natural drift and movement.
The Yarn Indicator Rig
The first rig uses a white New Zealand-style yarn indicator, also available in high-visibility orange. The indicator is positioned approximately the depth of the water above the split shot — a critical detail in slow to moderately slow current, where indicator sensitivity directly affects your ability to detect subtle takes and avoid false hookups.
To set up the yarn indicator, slide your line into the attachment tool, slip the small plastic ring onto the line, and leave yourself plenty of room with the mono loop. Slip some yarn into the loop and bring the plastic ring up flush. Pre-treating the yarn with a product like Watershed improves waterproofing and flotation, while a floatant such as Loon Aquel and a desiccant powder help maintain buoyancy through extended fishing sessions.
The Fly Line Indicator Rig
The second rig substitutes a short section of old fly line for the yarn indicator, attached via nail knot. This setup is particularly effective in slow water, where its sensitivity picks up the most hesitant takes. Unlike yarn indicators, the fly line indicator will almost always sink slightly — and that's by design. It is not meant to support the weight of the flies; rather, it functions as a pure take detector, highly responsive to any interruption in the drift.
In deeper water, two indicators spaced apart can be used, and the fly line indicator can be positioned higher on the leader since its sinking behavior is expected and accounted for.
Weighting Strategy
For the deepest water, BB split shot provides adequate weight to get flies down quickly. More commonly, however, micro shot is the preferred choice for clear water sight fishing. The reasoning is both practical and philosophical: smaller weight reduces snagging risk and, crucially, allows the fly to approach something closer to neutral buoyancy as it sinks to the fish's level — a subtlety that can make a measurable difference in pressured, clear-water environments.
Selecting the Right Fly: Profile, Proportion, and Movement
Fly selection for clear water nymphing is where many anglers default to a frustrating trial-and-error approach — swapping patterns at random and hoping for results. A more disciplined framework considers not just color and flash, but the characteristics that experienced guides have come to prioritize above all others.
"I find profile, proportion, and movement to often be even more important than color and flash — within reason. In other words, if a hatch is going, simply match it."
Western Tailwater Patterns
Western tailwaters support remarkably consistent food sources year-round, which translates into a core set of staple patterns that produce fish in nearly any season.
Crustaceans (Sizes 16–22): Mysis shrimp, scuds, and sowbugs are arguably the most important food source on many tailwaters. These patterns are effective year-round and often account for some of the largest fish in the system. A size 14 scud, the toflyfish team notes, produced their first 22-inch brown on a western tailwater.
Small Mayflies (Sizes 18–22): The Barr Emerger and similar patterns imitate midges, small mayflies, and even scuds — a versatile group that covers multiple bases with a single profile. Mayfly nymph imitations in sizes 14 to 16 are particularly productive from March through November, covering palmering duns and blooming olive hatches.
Midge Pupae and Larvae (Sizes 18–22): Essential during winter and early spring when hatches are sparse, midge larvae patterns fill the gap left by less active insect life. Midge pupae patterns double as small mayfly emerger imitations, making them among the most versatile flies in the tailwater arsenal.
Caddis Pupae (Sizes 14–18): Soft hackle patterns are described as "incredible all-around patterns when hatches are not strong." They begin producing in May and remain effective until cold weather curtails caddis activity around October. Soft hackles in particular offer a combination of movement, profile, and proportion that makes them effective even when fish are not actively keying on caddis.
The Junk Food Group: Worms, crane flies, and eggs round out the tailwater selection, serving primarily as searching patterns except during specific periods — such as runoff season for worms, or when spawning fish introduce eggs into the drift.
Great Lakes Patterns
Great Lakes steelhead and lake-run brown trout demand a somewhat different playbook. While these fish will feed selectively on hatches — particularly in Michigan rivers in the spring — the majority of Great Lakes nymphing relies on triggering attributes rather than precise imitation.
Stonefly nymphs in sizes 8 to 14, small minnow imitations, and articulated patterns form a movement scale that spans from subtle to aggressive. The underwater footage referenced in the original video makes this spectrum vivid: a stonefly nymph moves with controlled, natural erraticism; an articulated nymph introduces a subtle wiggle; a minnow pattern has a longer, more provocative profile that appeals to aggressive fish.
Egg Patterns: A Category Unto Themselves
Egg patterns deserve special consideration, as they are used across both Great Lakes and western tailwater fisheries — with the important caveat that tailwater applications call for significantly smaller versions, typically two to six sizes smaller than their Great Lakes counterparts.
Each egg pattern type sinks and hovers at a different rate, a detail that matters enormously when presenting to fish at specific depths in clear, slow water:
- Simple Chenille Eggs (Sizes 4–12): Fast-sinking, with sparkle and glow along the bottom
- Soft Eggs (Sizes 4–10): A very round profile with a gentle, glowing sink
- Balled Eggs with Dense Center (Sizes 6–12): Dense construction for controlled descent
- Yarn Glo-Bugs (Sizes 8–12): Classic and effective, with a natural drift
- Chenille Spawn (Sizes 6–12): Hovers enticingly in the water column
- Beads (6mm, 8mm, 10mm): A hard, perfectly round profile; the hook bounces bottom naturally
Mentioned in This Article
Watershed Fly Dressing Water Repellent
Water repellent treatment used to pre-treat yarn indicators
The Three Drifts: Upstream, Across, and Down-and-Across
In pressured, clear water, presentation isn't just important — it is often the single deciding factor between a fish that eats and a fish that ignores you. Fish in these environments have seen countless rigs, countless indicators, and countless poorly executed drifts. Fine-tuning your presentation is non-negotiable.
There are three primary casting angles in clear water nymphing, each with distinct advantages and trade-offs.
Upstream
Casting upstream keeps you out of the fish's direct line of sight — a meaningful advantage in extremely clear, shallow conditions. The significant downside is that your indicator, weight, and fly line will often reach the fish before the fly does, diminishing the presentation and alerting the fish to your presence before your offering even arrives. The upstream cast is most useful as a setup: cast upstream to allow the fly to sink, then redirect the drift to an across or down-and-across angle for the actual presentation.
Across and Down-and-Across
This is the preferred presentation for sight fishing in clear water. Although it places the angler more squarely in the fish's field of view — unless concealment or greater casting distance is used — it delivers the fly first, without the indicator or weight line alerting the fish prematurely.
"This presentation is the best for sight fishing and presenting the fly first without any other parts of your rig messing up the presentation."
The execution is precise: position yourself up and across from a visible fish, cast upstream far enough that the fly has time to sink to the fish's mouth level by the time it arrives. This is not a casual lob — it requires reading the current speed, the depth, and the fish's exact position, then calculating the necessary lead distance to achieve the right sink depth at the right moment.
If the fish doesn't take, pull the fly out of the water softly and quietly. The goal is to avoid spooking the fish and, critically, to avoid snagging it during fly removal. The toflyfish method emphasizes watching the fly directly whenever possible, using the fish's body language as a secondary indicator, and falling back on the indicator only when neither the fly nor the fish is clearly visible.
Mending, often treated as a fundamental and constant habit by many nymph anglers, takes a more selective role in this approach. With a specific fish in view, the priority is the drift — not the mend. "My only focus is on the drift I need for the fish I can see," the toflyfish team explains, "so I often don't mend unless I switch to another fish, I have a particularly challenging current, or there's an object in the way."
Reading Active Fish: The Most Underrated Skill in Sight Fishing
One of the most practically valuable insights in the toflyfish approach is deceptively simple: not all fish are worth casting to. In a pool full of large lake-run browns or steelhead, the temptation is to target the biggest fish in sight. But size is not the relevant variable — activity is.
An active fish is one that is moving, repositioning, opening its mouth, and showing behavioral signs of feeding. A stationary, sulking fish may be resting, stressed from spawning, or simply not in a feeding mode. Presenting your fly repeatedly to an unresponsive fish wastes time, risks spooking the pool, and dramatically increases the chance of a foul-hook.
"When you sight fish, look for active fish, not just any fish. The fish on the left is moving vigorously and opening its mouth from time to time, picking stuff up — compared to the other on the right."
This discipline — picking shots on active, receptive fish and moving on when a fish is not responsive — is one of the clearest differentiators between experienced and developing sight fishers. It requires patience, observation, and a willingness to ignore the biggest fish in favor of the most catchable one. As the toflyfish team bluntly states: "I'd rather catch a smaller fish than snag a large one."
Mentioned in This Article
Loon Outdoors Dust Desiccant Fly Drying Powder
Desiccant powder used to dry out waterlogged yarn strike indicators
Fighting Fish on Small Nymphs: An Underrated Discipline
Landing a large lake-run fish on small nymphs is a skill set unto itself — and one that receives far less attention in fly fishing instruction than it deserves. The physics of small hooks and fine tippet demand a different approach than throwing streamers at aggressive fish on heavy gear.
The foundational rule is rod angle. Always angle the rod downstream or across — never upstream. An upstream rod angle pulls the hook directly out of the fish's mouth rather than driving it deeper. Too much pressure with a small nymph can produce the same result: a popped fly and a lost fish.
When a fish runs toward structure or a snag, the decision tree becomes consequential. In most cases, raising the rod and directing the fish away from the obstacle is the preferred course. But when a clean escape route is clearly unavailable, putting the brakes on — even at the risk of a break-off — may be the only realistic option.
"It's amazing how much pressure you can put on a rod and line with proper technique."
For upstream-running fish, side pressure is the tool of choice. Rather than lifting the rod straight up, direct it downstream — perpendicular to the fish's direction of travel — and apply steady, even tension. The goal is to bring the fish's head up in the water column so that it is fighting both rod pressure and current simultaneously, accelerating fatigue without resorting to the violent pulling that pops small hooks.
A flexible rod is specifically called out as an important asset in this context, functioning as a natural shock absorber that maintains tension without transferring every surge of a powerful fish directly to a light tippet.
The Net: Non-Negotiable for Fish Health and Landing Efficiency
For the toflyfish team, a landing net is not optional equipment — it is a core component of both fish welfare and landing efficiency. The case for always using a net is straightforward: fish can be landed faster, handled more briefly, and released in better condition when a properly sized net is part of the equation.
"A net allows you to keep the fish in the water while you unhook the fish and bring it up for a quick photo. Then you can release the fish unharmed."
The emphasis on net size is particularly practical. Many anglers carry a net that is adequate for average fish but undersized for their largest catch — precisely the moment when a net is most needed. A 30-inch-plus lake-run brown demands a net scaled to the occasion. Arriving at that moment with an undersized mesh is a problem that proper preparation eliminates entirely.
The sequence matters: net the fish, keep it in the water, remove the hook, take a quick photo with the fish still dripping, and release cleanly. A fish that never leaves the water and is handled for only seconds is a fish that swims away with the best possible chance of survival — a value the toflyfish team treats not as an afterthought, but as a core ethic of the sport.
Mentioned in This Article
Nail Knot Tying Tool Fly Fishing
Tool used to tie nail knots when constructing a fly line indicator rig
Final Thoughts: Precision Over Persistence
Clear water nymphing is ultimately a discipline of precision — precise rigging, precise fly selection, precise presentation, and precise fish reading. It rewards patience and observation over brute persistence, and it demands a level of intentionality that the best anglers apply to every cast, every drift, and every fish they choose to target.
The toflyfish approach synthesizes more than two decades of on-the-water experience into a framework that is both principled and practical. It addresses not just how to catch fish, but how to do so in a way that minimizes harm to individual fish, maintains the health of fragile spawning populations, and elevates the overall experience on rivers that can, at their worst, bring out the least thoughtful impulses in anglers.
Whether you are wading a western tailwater in January, chasing Great Lakes steelhead in March, or presenting egg patterns to lake-run browns on a Michigan river in the fall, the core principles hold: rig light, read the fish, present the fly first, and set the hook only when you mean it. The clear water will tell you the rest.
For leader recommendations, fly suggestions, and gear guidance specific to your fishery, visit tofly.com or connect with the toflyfish team on social media.