Odessa barb care guide

Plan a tank with odessa barbsSee all tank mates

Odessa barb quick facts

Tank setup

Give a group of six at least a 20 gallon long (76 L) tank about 30 in (75 cm) long, and more room for a bigger group. Plant the back and sides, add floating plants and leave open water in the middle. A dark substrate makes the males' red stand out.

How many odessa barbs in a tank?

The smallest common tank that suits odessa barbs is a 20 gallon long. Here is roughly how many fit in each size when they are the only fish, based on adult size and waste output. Leave room if you want tank mates.

Water parameters

Keep them at 20–25 °C (68–77 °F), on the cooler side of tropical. They are captive-bred and adaptable, doing well at pH 6.0–7.5 and around 4–15 dGH. Clean, stable water with weekly partial changes matters more than exact numbers.

Best tank mates for odessa barbs

These popular species share odessa barbs' water needs and temperament. See the full list of 69 good matches.

• Nerite snail

  2.5 cm (1 in) · 22–27°C (72–81°F)

• Neon tetra

  3.5 cm (1.4 in) · 21–25°C (70–77°F)

• Panda corydoras

  4.5 cm (1.8 in) · 21–25°C (70–77°F)

• Bristlenose pleco

  12 cm (4.7 in) · 22–26°C (72–79°F)

• Bronze corydoras

  7 cm (2.8 in) · 21–26°C (70–79°F)

• Zebra danio

  5 cm (2 in) · 18–25°C (64–77°F)

• Assassin snail

  2.5 cm (1 in) · 22–27°C (72–81°F)

• Ramshorn snail

  2 cm (0.8 in) · 21–27°C (70–81°F)

Avoid keeping odessa barbs with

• Cherry shrimp: Odessa barb eats small shrimp like cherry shrimp.
• Oscar: Oscar can eat odessa barbs: they're small enough to fit in its mouth once it's grown.
• Boesemani rainbowfish: They need different temperatures: Odessa barb 20–25°C (68–77°F), boesemani rainbowfish 26–29°C (79–84°F).
• Chinese algae eater: Chinese algae eater is aggressive and will bully or injure peaceful odessa barbs.
• Convict cichlid: Convict cichlid is aggressive and will bully or injure peaceful odessa barbs.
• Discus: They need different temperatures: Odessa barb 20–25°C (68–77°F), discus 28–30°C (82–86°F).

Feeding

Odessa barbs are hungry omnivores. Feed a quality flake or micro pellet, with vegetable flake or algae wafers now and then. Add frozen or live daphnia, brine shrimp and bloodworm a few times a week for the best color.

Behavior

In a group of six or more they are active but mostly peaceful, and males spar and show off to each other without real harm. In small groups they can nip fins, so avoid bettas, fancy guppies and other slow, long-finned fish. Good tank mates include danios, other small barbs, rasboras, larger tetras, corydoras and loaches.

Breeding

Mature males have a wide red stripe from head to tail and dark-marked fins; females are rounder with a plainer gold-olive body. They scatter eggs over fine plants or moss and eat them afterward. Spawn a pair in a separate tank with java moss or mesh on the bottom and remove the adults once eggs appear. Eggs hatch in about 1–3 days depending on temperature, and the fry start on infusoria.

Tips from experienced keepers

• Keep both sexes. Males show their strongest red when females and rival males are around.
• Store juveniles look plain. The red stripe develops as males mature over a few months.
• A group of eight to ten is calmer and less nippy than a small group.
• Do not rely on them with dwarf shrimp. They eat babies and may hunt adults.

Sources

We checked these references when writing this page. Values are for healthy long-term keeping, not survival limits. Last reviewed 2026-10-13. See our editorial policy.

• seriouslyfish.com
• fishbase.de
• fishkeeper.co.uk