Tench
Tench are a European import that arrived in Australia in the 1870s and took hold in Victoria, South Australia, and Tasmania. They're a coarse-fishing staple — a chunky, slow-water bottom feeder that rewards patience and light tackle.
In Victoria especially, they've built a quiet following among anglers who grew up on traditional float-fishing methods.
Scientific Name: Tinca tinca
Also known as Doctor fish
- Deep, thickset body with very small scales buried under a heavy slime coat — noticeably slippery in hand. Olive-green to dark bronze overall, with gold iridescence on the cheeks and flanks.
- Small orange-red eyes are the clearest field mark — distinctive and unlike any other freshwater species in Australian waters.
- Tiny mouth with a single small barbel at each corner; thick, fleshy lips built for rooting along the bottom.
- Most catches run 30–50 cm; the species can reach 70 cm but fish that size are uncommon in Australian waters.
What to know
Habitat Distribution
- Introduced from Europe; established in the Murray-Darling Basin across NSW, Victoria, and South Australia, and in the Derwent River system in Tasmania.
- In South Australia, found in the River Murray and the Onkaparinga River. Victoria holds the most accessible populations for recreational anglers.
- Strictly a slow-water fish — backwaters, lagoons, weedy lakes, and deep sheltered holes. Avoids any significant current.
- Favours muddy or silty bottoms with dense aquatic weed, which provides both cover and feeding habitat.
Key Locations
- Victoria — the most accessible tench fishery in Australia, with fish spread across weedy lakes, rivers, and irrigation channels throughout the state.
- River Murray (SA/VIC) — established population in the main channel and associated backwaters and lagoons.
- Onkaparinga River, South Australia — one of the confirmed SA populations outside the Murray system.
- Derwent River system, Tasmania — a separate introduced population; growth is slower here due to cooler water temperatures.
Specific Spots
- The edge of thick weed beds — tench school just outside dense vegetation, using it as cover while feeding along the bottom nearby.
- Backwaters and off-channel lagoons connected to main river systems; these calm, silty pockets concentrate fish year-round.
- Deep, sheltered holes in lakes and slow rivers, particularly where weed meets a soft bottom — tench hold here during cooler periods.
- Dawn and dusk, fish move into shallower weedy margins; this is the window to target them close to the bank.
Tench FAQ
Answers from onWater's species guide.
What are the best lures and bait for Tench?
Worms are the standby bait, earthworms or garden worms fished on a small hook hard on the bottom cover the main food sources (insect larvae, worms, molluscs) in one presentation.
When is the best time to fish for Tench?
Summer and autumn (December–April), peak activity as water temperatures rise above 16°C; fish are more numerous and more willing to feed. Winter and spring (May–November), tench slow down considerably in cooler water, but larger individual fish are more commonly encountered during this period.
How do you catch Tench?
Most Australian tench fishing is done from the bank using float or bottom rigs with natural bait, targeting weedy backwaters and lake margins at dawn or dusk. Slow, patient presentations with worm or dough baits on light line are the standard approach.
What do Tench eat?
Adults feed mainly on aquatic insects, chironomid midges, dragonfly larvae (mudeyes), and mayfly nymphs, along with small crustaceans, worms, and molluscs. Bottom-fished worm or maggot baits directly imitate this forage and are the most reliable option.
Where do Tench live?
Introduced from Europe; established in the Murray-Darling Basin across NSW, Victoria, and South Australia, and in the Derwent River system in Tasmania. In South Australia, found in the River Murray and the Onkaparinga River. Victoria holds the most accessible populations for recreational anglers.
See it in the app
Most maps show you water.
onWater shows you Tench.
- 01 · Species map filter
Map every Tench water
Pick Tench and the map zeroes in on the waters they call home. No more guessing which lake holds them.
- 02 · Waterbody species
Tap any water. See what lives there.
Species, behavior and seasonal patterns for every lake, river and pond, before you leave the driveway.
- 03 · Angler Intelligence
Ask how to catch Tench
Tactics, gear and timing from onWater's AI fishing guide, tuned to the species and the water you're on.
Stop guessing where Tench are.
Open the map, filter by Tench, and head to water that holds them. Download onWater and plan your next trip in minutes.
- Species map filter
- Angler Intelligence
- Fishing journal
Explore other species
Trout, bass, salmon, panfish and everything in between. Each guide unpacks the behavior, seasons, and tactics that put fish in the net.
No species information available.
Smarter Fishing Starts in the App.
onWater Fish gives you everything you need to plan smarter, fish better, and own every trip from first cast to last.