Checkered Barb

Oliotius oligolepis

Animalia›Chordata›Actinopterygii

📍 Southeast Asia

A small, active barb from Southeast Asia with a distinctive pattern of dark, checkered scales on a golden-orange body, with males developing reddish fins at maturity. Peaceful and easy to keep, it thrives in schools of 6+ in a well-planted tank and makes an excellent community fish.

Size2"

Min Tank15g

School6+

peaceful

Zonemid

Care Guide

Diet

Checkered Barbs are omnivorous and thrive on a varied diet of high-quality flake foods, micro pellets, and small frozen foods like brine shrimp and daphnia. Feed small amounts once daily, offering only what they can consume in 2-3 minutes. Supplement occasionally with blanched vegetables like zucchini to support digestive health.

Behavior

These active, schooling fish are constantly in motion and display peaceful, non-aggressive behavior toward tankmates. Males may exhibit mild fin-flaring displays during breeding season but rarely cause harm. They prefer to stay in the mid-water column and benefit from open swimming space combined with planted areas for security.

Breeding

Breeding Checkered Barbs in captivity is moderately difficult and rarely occurs in community tanks. They are egg-scatterers that require soft, acidic water (pH 6.0-6.5), dense vegetation or spawning mops, and slightly elevated temperatures around 76-77°F to trigger spawning. Remove parents after spawning as they will consume eggs; fry are tiny and require infusoria or liquid fry food initially.

Tank Mates

Emerald Dwarf Rasbora

Similar size, peaceful temperament, and identical water parameter requirements make them ideal schooling companions

excellent

Neon Tetra

Small, peaceful community fish with overlapping temperature and pH preferences; adds color variety

excellent

Otocinclus

Peaceful algae-eater that occupies bottom zone and shares identical water conditions without competing for food

excellent

Dwarf Gourami

Peaceful gourami that occupies different water zones; ensure adequate space to prevent territorial disputes

good

Red Cherry Shrimp

Peaceful invertebrate that helps with algae control; barbs may occasionally nip at shrimp, but generally compatible in planted tanks

good

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, rapid breathing, lethargy, rubbing against objects

Treatment

Raise temperature gradually to 28-29°C, perform daily 25% water changes, use aquarium salt (1 teaspoon per 5 gallons) or commercial ich treatment; maintain for 10-14 days

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, lethargy

Treatment

Improve water quality with frequent partial water changes, reduce stocking density, treat with antibacterial medication if severe; ensure good filtration and avoid sharp decorations

Bacterial Infection

Symptoms

Red streaks on body, swollen abdomen, loss of appetite, torn fins

Treatment

Perform 30% water change immediately, treat with broad-spectrum antibiotic medication, isolate severely affected fish; maintain pristine water conditions

Velvet Disease (Oodinium)

Symptoms

Fine golden or rust-colored dust on body, rapid breathing, scratching behavior, clamped fins

Treatment

Increase aeration, raise temperature to 28°C, perform daily 25% water changes, use copper-free velvet treatment; dim lights as the parasite is photosynthetic