Weather Loach

Misgurnus anguillicaudatus

Weather Loach (Misgurnus anguillicaudatus) — Intermediate care, Peaceful, under Loach. Minimum tank in the app: 55 US gal min; aim for 50–73°F and pH 6–7.8. The Weather Loach is a fascinating choice for aquarists seeking an active bottom dweller that thrives in a spacious environment.

Weather Loach (Misgurnus anguillicaudatus) in a planted freshwater aquarium
Care levelIntermediate
TemperamentPeaceful
Min tank size55 US gal min
pH range6–7.8
Temperature50–73°F
Max size11.0 in (28.0 cm)
Captive lifespan8–12 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Asia

  • East & Southeast Asia

Regional colours match the stocking calculator’s origin map.

Weather Loach Tank Setup

Aim for a spacious layout with fine substrate to accommodate their burrowing habits. Incorporate plenty of hiding spots using rocks and plants, while maintaining a moderate flow to mimic their natural habitat. Good filtration is critical to manage their bioload and maintain water quality.

What Do Weather Loachs Eat?

As omnivores, they feed at a moderate pace, so provide a varied diet to reduce competition over food. Be mindful of their preferences for sinking pellets and live foods, which can enhance their coloration and overall health.

Weather Loach Tank Mates

Weather Loaches pair well with similarly sized, non-aggressive species that occupy different tank levels, such as larger tetras or barbs. Avoid overly territorial or fin-nipping fish, which could stress or provoke aggressive behaviors in loaches. While they are not shoaling fish, consider keeping them alone or in small groups to mitigate stress during social interactions.

Are Weather Loachs Good for Beginners?

We rate this as intermediate. Budget time for testing, maintenance, and watching behaviour if the water looks fine but the fish do not. Aquarists often underestimate the space and filtration needs of Weather Loaches, leading to poor water quality and stress. Overcrowding or insufficient hiding spaces can result in aggressive behavior or anxiety, jeopardizing their health and well-being.

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