Checkerboard barb care guide
Also called: Checker barb, Checkered barb, Island barb
The checkerboard barb is a small, gentle barb from Sumatra with a silvery checkered pattern; males turn coppery with red, dark-edged fins. It suits a planted community tank of 20 gallons (76 L) or more, kept in a group of at least six.
Checkerboard barbs need a tank of at least 20 gallons (76 L), a group of 6 or more, and water at 20–25°C (68–77°F) with a pH of 6–7.5. They grow to about 5 cm (2 in) and are peaceful.
Plan a tank with checkerboard barbsSee all tank mates
Checkerboard barb quick facts
| Scientific name | Oliotius oligolepis |
|---|---|
| Family | Cyprinidae |
| Origin | Streams, rivers and lakes of Sumatra, Indonesia |
| Adult size | 5 cm (2 in) |
| Minimum tank | 20 gallons (76 L), at least 75 cm (30 in) long |
| Temperature | 20–25°C (68–77°F) |
| pH | 6–7.5 |
| Hardness (GH) | 2–12 dGH |
| Group size | 6 or more (shoaling fish) |
| Temperament | Peaceful |
| Swims at | Middle |
| Diet | Omnivore |
| Care level | Easy |
| Lifespan | 4–6 years |
| Safe with shrimp? | Mostly (eats baby shrimp) |
| Safe with plants? | Yes |
Tank setup
A group of six needs at least 20 gallons (76 L) with a tank about 30 in (75 cm) long. Plant it well, but leave open water in the middle. A dark substrate, some floating plants and softer light make their colors stand out. Gentle to moderate filter flow is fine.
How many checkerboard barbs in a tank?
The smallest common tank that suits checkerboard 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.
| Tank | Checkerboard barbs (alone) |
|---|---|
| 3 gallon | Too small |
| 5 gallon | Too small |
| 10 gallon | Too small |
| 15 gallon | Too small |
| 20 gallon | Too small |
| 20 gallon long | 6–19 |
| 29 gallon | 6–28 |
| 40 gallon | 6–39 |
| 55 gallon | 6–53 |
| 75 gallon | 6–73 |
| 125 gallon | 6–121 |
What you need for checkerboard barbs
Sized for a 20 gallon long tank, the smallest common size that suits a group of 6 checkerboard barbs. For a different tank or a mix of fish, use the stocking calculator for a list sized to your plan.
Tank and equipment
- 20 gallon long aquarium (tank or kit) (opens Amazon in a new tab)Bigger tanks are more stable and easier for beginners. How to choose
- Aquarium stand for 20 gallons (opens Amazon in a new tab)The water alone weighs about 167 lb (76 kg), before glass, gravel and rock. How to choose
- Adjustable heater, 50 W (opens Amazon in a new tab)Holds about 73 °F (22.5 °C) in a room at 65 °F (18 °C). How to choose
- Aquarium thermometer (opens Amazon in a new tab)Check it daily: heaters can fail stuck on or off. How to choose
- Hang-on-back filter rated 80–120 GPH (opens Amazon in a new tab)Community tank: 4–6 times the tank volume per hour. How to choose
- About 45 lb of aquarium gravel (opens Amazon in a new tab)Enough for a layer about 2 in (5 cm) deep. Smooth gravel suits most community fish. How to choose
- Water conditioner (dechlorinator) (opens Amazon in a new tab)Removes chlorine and chloramine from tap water. Seachem Prime is a popular, concentrated choice. How to choose
- Liquid test kit (ammonia, nitrite, nitrate, pH) (opens Amazon in a new tab)Liquid kits are more accurate than strips. The API Freshwater Master Test Kit is the common choice. How to choose
- Gravel vacuum (siphon) (opens Amazon in a new tab)Cleans the gravel and does the water change in one go. How to choose
- LED aquarium light, about 30 in long (opens Amazon in a new tab)Match the light to the tank length. Basic LEDs grow easy plants. How to choose
Food and extras for checkerboard barbs
- Micro pellets or flakes for small fish (opens Amazon in a new tab)Small enough for tetras, rasboras and other nano fish.
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Water parameters
Keep them at 20–25°C (68–77°F), pH 6.0–7.5 and soft to moderately hard water (2–12 dGH). They adapt well to most tap water within that range. Weekly partial water changes keep them healthy and colorful.
Best tank mates for checkerboard barbs
These popular species share checkerboard barbs' water needs and temperament. See the full list of 79 good matches.
Cherry shrimp
3 cm (1.2 in) · 20–27°C (68–81°F)
Nerite snail
2.5 cm (1 in) · 22–27°C (72–81°F)
Guppy
5 cm (2 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)
Fancy goldfish
15 cm (5.9 in) · 18–23°C (64–73°F)
Avoid keeping checkerboard barbs with
- Oscar: Oscar can eat checkerboard barbs: they're small enough to fit in its mouth once it's grown.
- Bala shark: Bala shark can eat checkerboard barbs: they're small enough to fit in its mouth once it's grown.
- Boesemani rainbowfish: They need different temperatures: Checkerboard 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 checkerboard barbs.
- Convict cichlid: Convict cichlid is aggressive and will bully or injure peaceful checkerboard barbs.
- Discus: They need different temperatures: Checkerboard barb 20–25°C (68–77°F), discus 28–30°C (82–86°F).
Feeding
An easy omnivore with a small mouth. Feed a fine flake or micro pellet every day, and add frozen or live foods such as bloodworms, brine shrimp and daphnia several times a week. Some plant food, like spirulina flakes, rounds out the diet.
Behavior
One of the calmest barbs, so it mixes well with small tetras, rasboras, danios, corydoras and peaceful gouramis. Males flare and display at each other, which is harmless and shows off their best color. A bigger group with several females keeps things relaxed. Avoid large or rowdy fish that will scare them.
Breeding
They scatter eggs, give no care and will eat their own eggs. Use a separate, dimly lit tank with fine-leaved plants, a spawning mop or mesh on the bottom, and slightly soft water at the warm end of the range. Remove the adults after spawning. Eggs hatch in 1–2 days; feed fry infusoria first, then baby brine shrimp.
Tips from experienced keepers
- Keep at least six, ideally with more females than males, for the calmest behavior.
- Males show their richest red fins when other males are around to display to.
- A dark substrate and floating plants make the checkered pattern pop.
- Feed small foods. Their mouths are tiny compared with bigger barbs.
Frequently asked questions
Are checkerboard barbs fin nippers?
Usually not. They are among the most peaceful barbs, especially when kept in a group of six or more with calm tankmates.
How big do checkerboard barbs get?
Adults reach about 2 inches (5 cm). Females are a little rounder and paler than males.
Can checkerboard barbs live with shrimp?
Adult dwarf shrimp are usually safe, but the barbs will eat baby shrimp. Dense plants and moss give shrimplets places to hide.
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.