Weather Loach

The Weather Loach (Misgurnus anguillicaudatus) is a long, eel‑shaped freshwater loach known for its quirky habit of becoming more active before storms due to changes in barometric pressure. These peaceful, hardy fish thrive in community aquariums and are ideal for keepers who want an active, personable bottom‑dweller.

What They Do

• Actively sift through substrate for leftover food and debris, helping keep the tank clean.

• Display unique “weather‑predicting” behavior, becoming energetic before pressure changes.

• Peacefully interact with tankmates and explore the bottom of the aquarium.

Tank Requirements

• Minimum Tank Size: 40–55 gallons (larger for groups). Adults reach 8–12 inches.

• Water Parameters:

  • Temperature: 50–77°F (cool‑water tolerant)

  • pH: 6.0–8.0

  • Hardness: Up to 12 dGH

• Environment:

  • Soft, sandy substrate to protect their delicate barbels.

  • Tight‑fitting lid—Weather Loaches are known jumpers.

  • Strong filtration and regular water changes; they tolerate varied conditions but thrive in clean water.

• Behavior:

  • Peaceful, social, and best kept in small groups.

  • Burrowers that enjoy leaf litter and soft substrate.

Diet

Omnivorous scavengers that accept a wide range of foods:

• Sinking pellets and wafers

• Frozen foods (bloodworms, brine shrimp)

• Vegetables and algae‑based foods

• Naturally sift through substrate for detritus and microfauna