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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
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If you’re keeping a weather loach, expect a hardy, bottom-dwelling fish that reacts to barometric pressure changes; it requires a 75-litre minimum tank, temperatures between 18–24°C, and a diet of sinking pellets and live food to thrive for 7–10 years.
What size tank does a weather loach need?
A weather loach needs at least a 75-litre tank (20 gallons), with an additional 40 litres for each extra loach. This fish is social and should be kept in groups of three or more to reduce stress. The tank should have a soft substrate and plenty of hiding spots, as loaches burrow and explore the bottom.
How to care for weather loach temperature and food
Maintain water temperature between 18–24°C, as weather loaches are cool-water fish. For weather loach food, offer sinking pellets, bloodworms, and brine shrimp—they are omnivores that forage at night. Monitor water quality with weekly changes; they are sensitive to ammonia. Weather loach size typically reaches 15–20 centimetres in captivity, and weather loach lifespan averages 7–10 years with proper care. For sale, check local aquarium retailers or online specialty shops, ensuring the fish are captive-bred.
Do weather loaches predict the weather?
They react to falling barometric pressure before storms, becoming more active or restless. This behaviour is not precise forecasting, but a response to environmental change.
Can weather loaches live with other fish?
Yes, they are peaceful community fish. Good tank mates include danios, tetras, and other loaches. Avoid aggressive or large predators.
How often should I feed a weather loach?
Feed once daily, offering only what they consume in two to three minutes. Skip one day a week to prevent overfeeding and poor water quality.
Sources
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