Electric Blue Acara: Tank Size, Tank Mates and How Many to Keep

Electric blue acaras shine metallic blue and are gentle for a cichlid of their size. They are a good first "big" fish.

Adult size
5.9 in15 cm
Smallest tank
40 gallons150 liters
How many
One or more
Temperature
72–82 °F22–28 °C
pH
6.5–8
Temperament
Semi-aggressive
Swims
In the middle
Heater needed
Yes

What size tank does an electric blue acara need?

At least 40 gallons (150 liters). The smallest standard tank that works is the 37 gallon. A bigger tank is always easier to keep stable. We give the size for an adult fish, because the small fish in the shop will grow. Scientific name: Andinoacara pulcher.

How many electric blue acaras in each tank size?

This is how many each standard tank carries comfortably if electric blue acaras are the only fish in it. Share the tank with other species and the number goes down.

TankHow many electric blue acaras
5 gallonToo small
10 gallonToo small
20 gallon longToo small
29 gallonToo small
40 gallon breeder1
55 gallon1
75 gallon1
125 gallonup to 3

Check electric blue acaras against your own tank and other fish

Tank mates for electric blue acaras

These animals like the same water, are a safe size, and have a temper that fits. It is a match on paper: always watch new tankmates for the first week.

Poor matches

  • Neon tetra: Electric blue acara (about 6 in) can eat neon tetra (about 1.4 in).
  • Fancy goldfish: Goldfish do best with other fancy goldfish.
  • Oscar: Oscar is aggressive and much bigger. Electric blue acara would be bullied.

Questions and answers

What size tank does an electric blue acara need?

At least 40 gallons (150 liters). The smallest standard tank that works is the 37 gallon. A bigger tank is always easier to keep stable.

How many electric blue acaras should be kept together?

One is fine. An electric blue acara does not need company, though a large enough tank can hold more than one.

Can electric blue acaras live in a 10 gallon tank?

No. Electric blue acara needs at least 40 gallons (150 liters), and grows to 6 in (15 cm), far too long for a 20 inch tank.

What temperature do electric blue acaras need?

72–82 °F (22–28 °C), with a pH of 6.5–8. In most homes that means a heater.

Can electric blue acaras live with a betta?

Usually, yes, in a tank of 40 gallons (150 liters) or more. They like the same water: 75–82 °F (24–28 °C). Every betta has its own temper, so watch closely for the first week and have a spare tank ready.

More fish

Adult size, tank size and water ranges follow the mainstream care consensus (Seriously Fish species profiles and FishBase maximum lengths). Where sources differ we use the more cautious figure. Stocking numbers come from our stocking calculator.