Blue Tilapia
Oreochromis aureus
A cold-tolerant tilapia with surprising hardiness and a calm, active personality.

About
The blue tilapia (Oreochromis aureus) is a robust cichlid native to a wide stretch of northeast Africa and the Middle East, including the Jordan Valley, the lower Nile, the Chad Basin, and the Senegal River system. It has since been introduced to warm-water ponds and reservoirs across parts of the world, partly because of its value as a food fish and partly because of its remarkable adaptability. In the wild it occupies everything from open water to rocky shallows and vegetated margins, and it handles a surprisingly broad range of conditions, including mildly brackish water, with ease. That resilience carries over well into the aquarium, making it a workable choice for keepers who are new to larger cichlids. Blue tilapia are generally docile and active, spending much of their time moving through the water column rather than lurking. They school, though individuals can show territorial tendencies at times. Diet in the wild shifts with age: juveniles take copepods, small crustaceans, and invertebrate matter, while adults graze heavily on phytoplankton. In the aquarium they accept a wide range of foods readily. They are maternal mouthbrooders and can reach sexual maturity in just five to six months, so breeding is very achievable if you have a compatible pair.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Blue Tilapia
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Blue Tilapia get?
- The Blue Tilapia reaches about 7–9" as an adult.
- What size tank does the Blue Tilapia need?
- A minimum of 30 gallons is recommended for the Blue Tilapia.
- What water parameters does the Blue Tilapia need?
- The Blue Tilapia does best with a temperature of 50–86°F, a pH of 6.5–8.5, hardness around 4–25 dGH.
- Is the Blue Tilapia aggressive?
- The Blue Tilapia is generally peaceful and suits a community tank with similarly calm tankmates.
- What does the Blue Tilapia eat?
- The Blue Tilapia is an omnivore. It does well on a varied diet of quality flake or pellet plus occasional frozen or live foods.
- How long does the Blue Tilapia live?
- With good care, the Blue Tilapia typically lives 1-5 years.