Can I keep a Brown Trout in a home aquarium?

It is highly impractical. Brown Trout require massive volumes of water, heavy currents, and commercial chillers to keep the water temperature strictly below 18°C. They quickly outgrow standard domestic aquariums.

What is the difference between a Brown Trout and a Sea Trout?

They are exactly the same species (Salmo trutta). A Sea Trout is simply a Brown Trout that has migrated to the ocean to feed and grow, before returning to freshwater to spawn.

What temperature is lethal to Brown Trout?

Temperatures consistently exceeding 22°C to 24°C are usually lethal. They thrive best in cold water between 10°C and 18°C, where dissolved oxygen levels remain naturally high.

What do Brown Trout eat in a pond or fishery?

In managed settings, they are typically fed high-protein commercial salmonid pellets. In nature, their diet consists of aquatic insects, terrestrial bugs that fall on the surface, crustaceans, and smaller fish.

Do Brown Trout require flowing water?

Yes. While they can live in still lakes, they absolutely require highly oxygenated water. In a captive setting, providing a strong current is necessary to mimic their natural habitat and maintain oxygenation.

FreshwaterTropicalAdvanced

Brown Trout

Salmo trutta

A highly adaptable and iconic coldwater salmonid prized by anglers and vital to European freshwater ecosystems.

List this species for sale Find Brown Trout near me

Ideal Conditions

Temperature: 10 – 18 °C
pH range: 6.5 – 8
Hardness: 4 – 20 dGH
Adult size: 35 – 80 cm
Large Pond or Fishery: 4,000 litres+
Lifespan: 5 – 15 years
Diet: Carnivore
Water flow: High
Preferred setup: Riverine simulation or large lake environment; extreme aeration, chiller often required, cobble or gravel substrate.

About the Brown Trout

The Brown Trout is a widely distributed and highly variable species of salmonid. Exhibiting multiple life-history strategies, they can be resident in rivers, migrate to vast lakes, or even head out to sea. They are renowned for their striking spotted patterns and play a significant role in both natural ecosystems and the sport-fishing industry.

Find Brown Trout

Search current listings in your chosen area. If none are available, save an alert and we’ll let you know when a match is listed.

Find locally Check compatibility Add to a Setup

Availability alerts only use public sale listings. Adding this species to a Setup updates your private records.

Is it right for your tank?

Check Brown Trout against a habitat you already keep. We compare water type, temperature, pH, adult size, group needs and everything living there.

Where Brown Trout comes from

Native range

Europe, Western Asia, North Africa

Countries / regions

United Kingdom, Ireland, France, Germany, Norway

Habitat

Cold, highly oxygenated streams, rivers, and deep glacial lakes.

Introduced globally to coldwater regions for sport fishing.

Similar species

Rainbow Trout
Oncorhynchus mykiss
Brook Trout
Salvelinus fontinalis
Atlantic Salmon
Salmo salar

We’re adding more full species guides as the catalogue grows.

Compatible tank mates

Reviewed guidance based on this species' recorded traits.

View all compatibility

Grayling
Thymallus thymallus
Shares the exact requirement for cold, fast-flowing, highly oxygenated water and usually coexists naturally without direct territorial conflict.
Great
Tench
Tinca tinca
A robust, bottom-dwelling fish that can avoid predation, but prefers much slower, slightly warmer water than the trout.
Compatible with caution
Rainbow Trout
Oncorhynchus mykiss
Shares environmental needs and is commonly co-stocked in fisheries, but will actively compete for food and territory.
Compatible with caution
European Minnow
Phoxinus phoxinus
Will be viewed as a primary food source and heavily predated upon by adult trout.
Not recommended
Goldfish
Carassius auratus
Slow-moving, brightly coloured, and requiring different conditions; they will easily fall prey to adult brown trout.
Not recommended

Current marketplace listings

Checking the marketplace…

See all Brown Trout listings

Public Wanted requests

No open requests for Brown Trout in this market yet.

Looking for Brown Trout?

Search current listings near you, or post a wanted request so local sellers know what you’re looking for.

Search Brown Trout listings Post a wanted request