I brought tiny hooks and big patience; the spring minnows made me use both. - Marco
Quick Facts
Average Size
12–15 inches
1–2 lbs
World Record
Habitat
Spring-Fed Limestone Creeks
Best Techniques
Microfishing With Ultralight Tackle
Best Baits
Small Worms And Insect Larvae
Challenge Score
Elite: 63
< Explore This Species >
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🔥Some populations spend their entire lives within a single spring run less than a mile long.
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02The species name argentosa nods to its subtle, silvery flash in clear spring water.
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03A rounded snout helps it graze slippery algal films coating limestone rock.
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04Spawning happens over clean gravel where tiny adhesive eggs stick in swift spring rivulets.
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05Most adults top out under 3 inches but mature in just a few warm months.
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06Males blush olive-gold during the spawn, showing off along grass-fringed current seams.
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07High-set eyes watch for danger above while the mouth works the rocks below.
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08They use travertine shelves like micro-dams, nibbling where flow slows and food collects.
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09Tight shoals pivot instantly at passing shadows, then resume grazing like nothing happened.
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10Stable spring temperatures keep them active year-round, even when nearby rivers run chilly.
Learn Real Facts — Choose Your Vibe
What Is a Trophy Size Manantial roundnose minnow?
Common Catch
—
Trophy Fish
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World Record
—
Length
Small
Weight
Small
Top Fisheries for Manantial roundnose minnow
Best places to catch Manantial roundnose minnow and how far they are from you.
From iconic trophy waters to bucket-list destinations, these are some of the best places on the planet to target Manantial roundnose minnow.
Del Rio
, Texas
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Miles
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Devils River
Val Verde County
, Texas
--
Miles
—
Río Sabinas
Coahuila
, Mexico
--
Miles
—
Río San Rodrigo
Coahuila
, Mexico
--
Miles
—
Río Escondido
Coahuila
, Mexico
--
Miles
—
Seasonality Chart
Best months to catch Manantial roundnose minnow: Mar, Apr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Manantial roundnose minnow Intelligence
Fishing Window
Good
In Season
Season Score
70/100
Trend
Improving
Peak Season In
6 Months
Difficulty Meter
63
Elite
Serious Challenge
Feeding Triggers
Time of Day
High
Temperature
High
Current
High
Weather
High
Most Important:
Current
Behavior
Manantial roundnose minnow
Behavior
Behavior Profile Radar
Strike
Manantial roundnose minnow
Strike
Strike Profile Radar
Positioning
Manantial roundnose minnow
Positioning
Positioning Radar
Fight
Manantial roundnose minnow
Fight
Fight Radar
Species Comparison Selector
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Where to Find Manantial roundnose minnow
Preferred Structure
Wood
Rock
Weeds
Undercuts
Depth Breaks
Water Column
Surface
Mid
Bottom
Cover vs Roam
Cover
Roam
Gear Loadout for Manantial roundnose minnow
A reliable starting setup for targeting Manantial roundnose minnow, based on typical size, habitat, and presentation style.
Core Setup
- ROD 5–6 ft ultralight or fixed-line micro rod
- REEL 500-size spinning with smooth start-up
- LINE 2–4 lb mono or 1–3 lb fixed line
- LEADER 2–3 lb fluorocarbon
Lures & Baits
- tanago or size 24–30 hooks
- pinhead worm bits
- midge larvae
- micro nymphs
Tactical Notes
- approach low and slow
- place baits inches from grass and gravel seams
- keep fish wet for quick release





