Clown Loach

Overview

The Clown Loach (Chromobotia macracanthus) is a large, long-lived, social loach prized for its orange-and-black banded body and entertaining personality. They are one of the best fish for controlling snail populations. They MUST be kept in groups and require a very large aquarium — they grow to 25–30 cm and can live 20+ years.

Water Parameters

• Temperature: 24–30°C (75–86°F); prefers warmth
• pH: 6.0–7.5
• Hardness: 5–12 dGH

Tank Setup

• Minimum tank size: 650 litres for 5+ (they are social and MUST be kept in groups)
• Substrate: Sand or fine gravel (they root around in substrate)
• Decor: Driftwood, caves, hiding spots; they are active and need room
• Note: They grow VERY large — plan for 25–30 cm adults from the start

Diet

• Base: Quality sinking pellets, flake
• Treats: Frozen bloodworms, brine shrimp, blanched vegetables, snails (they eat them)
• Note: They are omnivorous and appreciate variety

Temperament & Tank Mates

• Temperament: Peaceful, highly social, active
• Best companions: Large peaceful fish — larger tetras, gouramis, plecos, other large loaches
• Avoid: Small fish (may be outcompeted), very aggressive species
• Note: They are social and become stressed if kept alone — minimum group of 5

Breeding

• Difficulty: Very difficult in captivity; almost exclusively wild-caught

Common Issues

• They are jumpers — tight-fitting lid essential
• Prone to hole-in-the-head disease in poor water quality
• Slow growers but reach massive size — many are sold as juveniles and outgrow their tanks
• One of the longest-lived freshwater fish — 20+ years with excellent care
• Consider the long-term commitment before purchasing