Twospine Blackfish
NameTwospine Blackfish
Scientific NameDallia pectoralis
Common NamesTwospine Blackfish, Alaska Blackfish
FamilyUmbridae
OriginAlaska, Siberia, Chukotka, Arctic regions
Temperamentpeaceful
Dietcarnivore
Care Leveladvanced
Minimum Tank Size (Gallons)30
Max Size (Inches)8
Water TypeFreshwater
Temperature Range (°F)32-50
pH Range6.0-7.5
Description
The Twospine Blackfish is a unique coldwater species native to the Arctic, known for its incredible hardiness and ability to survive in extreme conditions, including low-oxygen water and even out of water for short periods. Its mottled brown and black coloration provides excellent camouflage among rocky substrates. Due to its specific coldwater requirements and predatory nature towards smaller fish, it is best kept in a species-specific tank.
