Checker Barb (Oliotius oligolepis) in a planted freshwater aquarium
Peaceful Easy Schooling

Checker Barb

Oliotius oligolepis

Minimum Tank

20 Gallons

Adult Size

2 inches

Temperature

68-77°F (20-25°C)

pH Range

6.0-7.5

Lifespan

6 years

School Size

6+ fish

About Checker Barb

The checker barb is a small, elegantly patterned fish from the rivers of Sumatra and Borneo in Indonesia. Its body displays a checkerboard pattern of dark-edged scales on a warm silvery-pink background, with males developing reddish fins and darker coloring during breeding. Checker barbs are one of the most peaceful barb species, completely lacking the fin-nipping tendencies that give some barbs a bad reputation. They are active mid-water schoolers that add subtle beauty and constant movement to community aquariums. Their gentle nature makes them safe companions for shrimp, small tetras, and even long-finned species, which is unusual among barbs.

Care Requirements

Tank Setup

  • • Minimum 20-gallon tank required
  • • Temperature: 68-77°F (20-25°C)
  • • pH: 6.0 - 7.5
  • • Category: Barb

Diet & Feeding

  • • Diet type: Omnivore
  • • Feed 1-2 times daily
  • • Varied diet recommended

Tank Mate Compatibility

Compatible With

🐟 Tetras
🐟 Rasboras
🐟 Corydoras
🐟 Loaches

Avoid Keeping With

⚠️
Aggressive Fish Not compatible

Care Tips

Expert Tips

Keep checker barbs in schools of at least six in a tank of 15 gallons or more. They prefer slightly soft, acidic water at 73-79°F but adapt to moderate conditions. Their peaceful nature makes them one of the safest barb choices for community tanks with delicate or slow-moving tankmates. Provide a planted tank with some floating cover and moderate current. Males display their best coloring when competing for female attention, so include both sexes. Feed quality flakes and micro-pellets supplemented with frozen daphnia and brine shrimp. Checker barbs are hardy and undemanding, making them an excellent choice for peaceful community setups.

Quick Facts

76L

Min Tank (20gal)

5cm

Adult Size (2")

6yr

Lifespan

6+

Min School

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Frequently Asked Questions

What size tank does a Checker Barb need?

A Checker Barb needs a minimum tank size of 20 gallons (76 litres). They should be kept in schools of at least 6.

What water parameters does a Checker Barb need?

Checker Barb thrive in water between 68-77°F (20-25°C) with a pH of 6.0-7.5.

Are Checker Barb easy to care for?

Checker Barb are considered easy to care for. They are peaceful fish with a lifespan of about 6 years.

How big do Checker Barb get and what do they eat?

Checker Barb reach about 2 inches and are omnivores. Keep checker barbs in schools of at least six in a tank of 15 gallons or more. They prefer slightly soft, acidic water at 73-79°F but adapt to moderate conditions. Their peaceful nature makes them one of the safest barb choices for community tanks with delicate or slow-moving tankmates. Provide a planted tank with some floating cover and moderate current. Males display their best coloring when competing for female attention, so include both sexes. Feed quality flakes and micro-pellets supplemented with frozen daphnia and brine shrimp. Checker barbs are hardy and undemanding, making them an excellent choice for peaceful community setups.