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Hora's Loach
Yasuhikotakia morleti
Also known as Lecontei Loach, Red-finned Loach
Cobitidae
📍 Southeast Asia, primarily Thailand, Laos, Cambodia, and the Mekong and Chao Phraya river basins
Hora's Loach is a compact, cylindrical loach with a pale yellowish-tan body marked by a distinctive dark stripe running from the snout through the eye to the caudal fin, along with a characteristic black spot at the base of the tail. It is a semi-aggressive, active bottom dweller known for its bold personality and tendency to establish dominance hierarchies within its own species and occasionally harass slower tankmates.
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Care Guide
Diet
Hora's Loach is an omnivore that thrives on a varied diet including high-quality sinking pellets or wafers as a staple. It eagerly accepts frozen or live foods such as bloodworms, tubifex, and brine shrimp, and will also graze on blanched vegetables like zucchini or cucumber. Snails are a natural prey item and this species is often used as a biological control for pest snail populations.
Behavior
Hora's Loach is an active and inquisitive fish that spends most of its time exploring the substrate and hiding among caves, driftwood, and dense planting. It can be semi-aggressive toward conspecifics and similarly shaped fish, so it must be kept in groups of five or more to distribute aggression and establish a stable social hierarchy. This species is also known to produce audible clicking sounds during social interactions, which is a normal and fascinating behavioral trait.
Breeding
Breeding Hora's Loach in captivity is extremely rare and has not been reliably achieved by hobbyists under home aquarium conditions. In the wild, spawning is believed to be triggered by seasonal flooding and hormonal changes associated with monsoon cycles. Commercial specimens available in the trade are almost exclusively wild-caught or produced via hormone-induced spawning at fish farms in Southeast Asia.
Tank Mates
Similar activity level and water requirements; robust enough to handle the loach's semi-aggressive nature, best kept in schools.
Large, active, and hardy barb that shares similar water parameters and can hold its own against the loach's bold temperament.
Peaceful bottom dweller that occupies similar zones; its armored body makes it resilient to occasional loach harassment.
Shares nearly identical water requirements and social behavior; both species benefit from group living and coexist very well.
Active, fast-moving fish that is generally ignored by the loach; helps with algae control and adapts well to the same water conditions.
Common Diseases
Ich (White Spot Disease)
Fine white spots resembling salt grains covering the body and fins, flashing against surfaces, lethargy, and loss of appetite.
Raise water temperature gradually to 30 C (86 F) and treat with a loach-safe ich medication at half dose, as scaleless fish are sensitive to standard concentrations of copper-based or formalin treatments.
Skinny Disease (Internal Parasites)
Visible weight loss and hollow belly despite a normal or increased appetite, lethargy, and pale coloration.
Treat with an antiparasitic medication containing fenbendazole or levamisole added to food or water; improve water quality and quarantine affected individuals.
Bacterial Infection (Aeromonas/Pseudomonas)
Red ulcers or sores on the body, frayed fins, hemorrhaging, bloating, and rapid deterioration of condition.
Improve water quality immediately with frequent water changes; treat with a broad-spectrum antibiotic such as kanamycin or nitrofurazone, ideally in a hospital tank.
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Quick Facts
- diet
- Omnivore – sinking pellets, frozen/live invertebrates, vegetables
- lifespan
- 8-12 years
- max size
- 10 cm (4 in)
- tank size
- 30 gallons minimum
Water it likes
- ph
- 6.0-7.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 3-12 dGH
- temperature
- 75–86°F (24–30°C)
Legality
No state or federal restrictions on record for this species.
Not legal advice, and possibly incomplete or out of date. Rules vary by state and locality and change over time — always confirm the current regulations with your state wildlife or agriculture agency before buying, keeping, or shipping this species.