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How to catch Weatherfish

Misgurnus fossilis (Linnaeus, 1758)

About Weatherfish fishing

The weatherfish is an elongated bottom-dwelling member of the true loach family Cobitidae, featuring a slender body marked with broad midlateral stripes and sensitive barbels around the mouth. Growing up to thirty centimetres in total length, this demersal species inhabits slow-flowing lowland rivers, muddy drainage channels, and densely vegetated still pools across Europe. It thrives in shallow, oxygen-poor substrates by utilizing a specialized vascularized intestine for breathing atmospheric air when necessary. Omnivorous and primarily nocturnal, it feeds on small aquatic invertebrates, insect larvae, and detritus while buried safely within the sand or silt during daylight hours.

  • Difficulty

    Medium

  • Average size

    15 cm TL

  • Habitat

    Freshwater, Brackish

  • Season

    Spring, Summer, Autumn

  • Also known as

    Mud loach, Weather-fish

Weatherfish

Caudal shape

More or less truncate caudal fin shape distinctive of the species.

Midlateral stripe

Broad midlateral stripe running from eye to caudal base.

Barbels

Multiple short barbels clustered around the inferior mouth.

Weatherfish fishing facts

Characteristics

  • Typical size

    15 cm TL (max 30 cm TL )

  • Typical weight

    0.2 kg (max 0.2 kg )

  • Longevity

    24.4 years

  • Body shape

    Elongated

  • Vulnerability score

    31.1

Best hours

  • Dawn

    First light

    Active

  • Morning

    After sunrise

    Low

  • Midday

    High sun

    Low

  • Afternoon

    Late day

    Low

  • Dusk

    Last light

    Active

  • Night

    After dark

    Peak

When to fish for Weatherfish

01
January
02
February
03
March
04
April
05
May
06
June
07
July
08
August
09
September
10 Now
October
11
November
12
December

How to catch Weatherfish

Tips for catching Weatherfish

Targeting weatherfish requires finesse and an understanding of their secretive, bottom-hugging habits in shallow, heavily vegetated still waters or sluggish muddy sections of rivers. Because these loaches stay buried in silt during the day, fishing is most productive during low-light periods from dusk through dawn when they emerge to forage actively. Light bottom-fishing rigs or delicate float setups presented right on the muddy substrate work best for offering small natural baits like garden worms, bloodworms, or maggots. Anglers should look for soft, organic-rich bottoms near dense weed beds and handle any captured specimens with care as they are sensitive to environmental disturbances and local protection rules.

Other names for Weatherfish

Local and alternate names anglers use for Weatherfish.

  • Weatherfish
  • Weather-fish
  • Mud loach

Best equipment to catch Weatherfish

Compare fishing methods for Weatherfish — sized kit for each technique.

Note: Typical fish is 0.2 kg Our algorithm will suggest the best equipment for you based on this weight.

Best lures and baits for Weatherfish

Ranked lures and natural baits from every method, best first.

How Weatherfish migrates — Potamodromous

Migrates within rivers and lakes only. Fish upstream runs and seasonal lake movements, not saltwater.

How Weatherfish migrates — Potamodromous 1. Eggs: Laid on gravel or weed upstream or in flooded shallows. 2. Larvae: Fry drift or swim down to slower water. 3. Adults: Feed in the main river or lake. 4. Spawners: Move upstream or into the shallows to spawn.
Upstream Main river or lake

1 Eggs

Upstream

Laid on gravel or weed upstream or in flooded shallows.

2 Larvae

→ Main river or lake

Fry drift or swim down to slower water.

3 Adults

Main river or lake

Feed in the main river or lake.

4 Spawners

→ Upstream

Move upstream or into the shallows to spawn.

The whole cycle stays in fresh water.

Hover or tap a number to read each stage.

Diet and behavior of Weatherfish

  • Diet

    Carnivore

  • Feeds by

    Mixed feeder

  • Hunts

    Night

  • Used as bait

    Yes

Prey and predators of Weatherfish

Prey is what Weatherfish eats. Predators are the animals that eat it.

That is how it feeds, and how it is hunted.

Predators

What hunts it

Mammals

  • Lutra lutra juv./adults

Where Weatherfish lives

Lives on or just above the bottom. Work jigs, bait, and lures along the seabed.

Habitats
Freshwater, Brackish
Depth zone
Depth not recorded
Water column
Demersal
On or near the bed

Where this species lives