XL Clown Loach (8”+)

Scientific name: Chromobotia macracanthus

Maximum size and lifespan:

• Can reach up to 12–16 inches (30–40 cm) in large aquaria or natural habitats, though often remain smaller in captivity. They're known for being a very slow grower expect them to take 8-10+ years to reach over a foot in length.

• Lifespan commonly 20+ years

Recommended aquarium size, water changes, and water parameters:

• Minimum aquarium size: 125 gallons (473 liters) for a group, as they are active schooling fish. Juveniles can be raised in 40-90 Gallon aquarium for better observation. 

• Keep in groups of at least 5–6 individuals for proper social behavior.

• Weekly water changes of 30–50% are recommended to maintain water quality.

• Water parameters:

  • Temperature: 75–86°F (24–30°C)

  • pH: 6.0–7.5
    

• Require good filtration, high oxygen levels, and moderate current.

Tankmates:

• Peaceful but active bottom and mid-water schooling fish.

• Compatible with larger peaceful species such as tetras, barbs, rainbowfish, gouramis, and other loaches. They can also be kept with semi aggressive Central/South American Cichlids and African Cichlids (With appropriate sizing)

• Avoid aggressive cichlids or overly small delicate species that may be intimidated/eaten by the loaches

Diet:

• Omnivorous with a preference for protein-rich foods.

• Diet should include sinking pellets, tablets, frozen (bloodworms, brine shrimp, and krill)

• Spirulina based foods and vegetable matter (blanched spinach, cucumber, zucchini).

• Appreciates a varied diet to maintain health and coloration.

Overview:
The Clown Loach is one of the most popular loach species due to its striking orange-and-black striped pattern and active, social nature. Known for its playful behavior and habit of resting on its side, it requires large aquaria and group living for long-term success. They are best kept by experienced aquarists who can accommodate their size and long lifespan.

Natural environment:
Native to Indonesia, specifically the rivers of Sumatra and Borneo. Found in floodplain rivers and streams with soft substrates, submerged roots, and leaf litter. Seasonal flooding provides additional feeding grounds.

Breeding:
Breeding in home aquaria is extremely rare and not well documented, though some success has been reported in large commercial facilities with hormone induction. In nature, they migrate into floodplains to spawn. Eggs are scattered among vegetation and left unguarded.