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Climbing Perch
Anabas testudineus
Animalia›Chordata›Perciformes›Anabantidae
The Climbing Perch is a hardy, labyrinth-breathing fish native to Southeast Asia that can survive in low-oxygen environments and even travel short distances on land. Known for their ability to climb and explore, they are moderately aggressive and territorial, making them suitable for experienced aquarists. These fish are adaptable and can thrive in various water conditions, though they require adequate space and hiding spots.
Where it's from
Native to the Alas, Amba, Ambalam Oya, An Lao and 196 other river basins
Indonesia, India, Sri Lanka, Vietnam, Malaysia, China, Thailand, Nepal and 5 more
Recorded as introduced in Australia, Bangladesh, Papua New Guinea (Bensbach basin), Papua New Guinea (Fly basin) and 6 more places
At a glance
- Size
- 10 in
- 25 cm
- Min tank
- 40 gal
- 151 L
- Temp
- 68–86°F
- 20–30°C
- pH
- 6.0-8.0
- GH
- 89–357 ppm
- 5–20 dGH
- Temperament
- Semi-aggressive
- Swims
- All levels
- Lifespan
- 5-10 yrs
Ammonia 0 ppm and nitrate under 20 ppm.
Care
Diet
Climbing Perch are opportunistic omnivores that consume small fish, aquatic insects, crustaceans, and plant matter. Feed a varied diet including high-quality pellets, live or frozen foods such as bloodworms, brine shrimp, and small fish. Offer food 2-3 times daily, adjusting portions based on tank size and fish activity.
Behavior
Climbing Perch are active, curious fish that explore their environment extensively and can climb vegetation and tank decorations using their pectoral fins. They are territorial and semi-aggressive, particularly toward smaller fish and conspecifics, so they should be housed singly or with larger, compatible species. They are labyrinth breathers and will surface regularly to gulp air.
Breeding
Breeding Climbing Perch in captivity is challenging and rarely successful in home aquariums. They require specific water conditions, large breeding tanks, and careful pair selection. Males are highly territorial during spawning and may injure females; professional breeding setups with proper conditioning are recommended.
Tank mates
See all 5Similar size and temperament; may compete for territory but can coexist with careful monitoring
Both semi-aggressive; requires large tank with adequate space and hiding spots
Similar size and peaceful-to-moderate temperament; compatible in larger tanks
Bottom-dweller that occupies different tank zone; minimal competition
May be preyed upon if small; only suitable in larger tanks with ample hiding
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Common diseases 4Ich (Ichthyophthirius multifiliis), Bacterial Infection, Parasitic Infection, Labyrinth Organ Infection
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, rapid breathing, lethargy, rubbing against objects
Increase water temperature to 28-30°C (82-86°F), perform water changes, use aquarium salt or commercial ich treatment; maintain good water quality
Bacterial Infection
Fin rot, body sores, ulcers, cloudy eyes, loss of appetite
Perform frequent water changes, improve water quality, use antibiotic medication if severe; isolate affected fish if possible
Parasitic Infection
Excessive scratching, visible parasites, weight loss, clamped fins
Use anti-parasitic medication, perform water changes, improve tank hygiene; quarantine new fish before introduction
Labyrinth Organ Infection
Difficulty breathing, gasping at surface, swollen gill area, lethargy
Maintain optimal water quality, ensure access to air surface, use antibiotics if bacterial; avoid sudden temperature changes
Legality
No state or federal restrictions on record.
Not legal advice, and possibly incomplete or out of date. Rules vary by state and change over time; check with your state wildlife or agriculture agency before buying, keeping or shipping it.
The care information here is written with AI help, so it can contain mistakes. Spot one? Tell us and we'll fix it. Native range: Global Register of Introduced and Invasive Species (CC BY 4.0); Tedesco et al. 2017 (CC0).
At a glance
- Size
- 10 in25 cm
- Min tank
- 40 gal151 L
- Temp
- 68–86°F20–30°C
- pH
- 6.0-8.0
- GH
- 89–357 ppm5–20 dGH
- Temperament
- Semi-aggressive
- Swims
- All levels
- Lifespan
- 5-10 yrs
Ammonia 0 ppm and nitrate under 20 ppm.
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