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Onsjön

humic brown forest lake · 60°N
Real lakereal shorelinemeasured max depth 12 m5 species on recordsizes from survey fishingreal water chemistrysources & method →
clarity 4.8 mmax depth 12 mpH 6.1oligotrophic · humicstatus goodgravel road
Fish Onsjön Buy forecast

Character of the water

Onsjön lies in central Sweden — a humic brown forest lake. The tea-stained, humic water hides the bottom within an arm's length.

The surroundings

The lake lies half-remote, a fair way from the nearest road, tucked into woodland.

A small but surprisingly deep pocket (12 m) with steep drops straight down from shore — the bottom falls away fast.

Permits & rules

Fishing permit required — Onsjön FVOF. Day permit ~140 kr · annual permit ~700 kr.

  • Pike: keep at most one over 75 cm per day.
  • Handheld tackle only. Respect the protected zones at the inlets and outlets.

Species in Onsjön

perch predatory fish
typically ~13 cm · can reach 27 cm
Perch grazes the rich water in schools — where there's one, there are more.
pike predatory fish
typically ~92 cm · can reach 92 cm
In the murky light, pike shadows the baitfish and hits in short rushes.
ruffe perch family
typically ~8 cm · can reach 11 cm
Down on the bottom ruffe sifts the soft ground — patience beats speed here.
roach coarse fish
typically ~14 cm · can reach 23 cm
Roach grazes the rich water in schools — where there's one, there are more.
nors fish
typically ~10 cm · can reach 10 cm
Nors roams the open water after the feed — a moving target.

Fishing Onsjön

Onsjön holds 5 species, with perch and pike at the top of the chain and ruffe, roach and nors schooling beneath them. The modest depth keeps most of the fishing within reach of the bank.

Every session at Onsjön is fished in whatever conditions hold right then — the same pressure, wind and light as over the real water. What bites today isn't what bit the day before, and those who return learn the water for real.

General rules of thumb for this kind of water

  • Brown, humic water dampens the light — fishing can be good even in the middle of the day.

The catch board

6 anglers · 12 catches
  1. 1Erik Raskpike73 cm
  2. 2Rickard Brandtpike69 cm
  3. 3Sören Dahlroach11 cm
  4. 4Sören Lundnors8 cm
  5. 5Roland Lundnors8 cm
  6. 6Lars Lindqvistruffe7 cm
Species records here
pike73 cmErik Rask
roach11 cmSören Dahl
nors8 cmRoland Lund
ruffe7 cmLars Lindqvist
The same water, for real
This water's real catch reports — and the logbook for your own.Fångstrapport.sein SwedishThe real bite table for this water — for your next real session.Huggtabell.sein Swedish