Freshwater
Alaska blackfish
Dallia pectoralis
Umbridae
Facts
Characteristics
- Length
- Up to 33 cm
- Body shape
- Streamlined
Care
- Group
- Missing
- Smallest aquarium
- 878 liters
- Diet
- Missing
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Behavior
- Temperament
- Missing
- Swims
- Missing
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Water values
Smallest tank
Range
More about the species
Description
Usually found in heavily vegetated swamps and ponds; occasionally in medium to large rivers and lakes with abundant vegetation. Migrations appear to be limited to inshore or upstream movements to spawning grounds in the spring and (presumably) reverse migrations to deeper water in the fall. Oviparous, batch spawner. Known for their tolerance to cold water: survives exposures to -20°C for up to 40 minutes, and can survive for a few days after complete freezing of parts of the body, even the head. Uses its esophagus as auxiliary breathing organ.
Other names
Other scientific names
- Dalia pectoralis
In other languages
- Alaskasvartfisk
- Sort hundefisk
- Blackfish
Articles
All articles
How to set up an Asian aquarium5 min read
Two aquariums from Southeast Asia: calm forest streams and peat swamps with soft, brown water, and fast mountain streams with cool, oxygen-rich water.
How to set up a North American aquarium5 min read
Streams and ponds in North America are often cool. How to set up an aquarium without a heater, with pygmy sunfish, shiners and darters.
How to add new fish4 min read
From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.
Quarantine for new fish3 min read
Why new fish should live in a tank of their own for a few weeks before they move in, what you need, and what to look for.