Common Name: Rosy Loach
Scientific Name: Petrochromogaster tenuicauda
Origin: Myanmar (Asia)
Size: 1–1.5 inches (2.5–4 cm)
Lifespan: 3–5 years
Temperament: Peaceful, active
Tank Level: Bottom to mid-level
Diet: Omnivore
Tank Requirements
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Minimum Tank Size: 10 gallons (best in 20+ gallons for groups)
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Water Temperature: 72-80°F (22-27°C)
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pH: 6.5-7.5
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Hardness: Soft to moderately hard (2-12 dGH)
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Substrate: Fine sand or smooth gravel
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Filtration: Gentle to moderate flow, well-oxygenated water
Tank Setup & Care
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Group Size: Best kept in groups of 6+ for social behavior
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Hiding Spots: Provide plants, driftwood, and caves for security
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Tank Mates: Ideal for peaceful community tanks with nano fish like tetras, rasboras, shrimp, and other small loaches
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Water Quality: Needs stable, clean water with regular water changes
Diet & Feeding
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Primary Diet: High-quality micro pellets, flake food, and sinking wafers
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Live/Frozen Foods: Enjoys daphnia, baby brine shrimp, bloodworms, and tubifex
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Foraging Behavior: Actively sifts through the substrate for food
Behavior & Additional Notes
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Active & Playful: Loves to explore and swim in groups
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Coloration: Males are more vibrant, while females are slightly larger and rounder
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Breeding: Difficult in home aquariums but possible with soft, warm water and dense plant cover
Rosy Loaches are hardy, beautiful nano fish that thrive in peaceful community setups. Keeping them in groups will showcase their natural social behavior and make them an active and engaging addition to your tank!
