Can Clown Loach and Goldfish Live Together?

Clown Loach and Goldfish Compatibility Overview

Clown Loach and Goldfish are generally not recommended to be housed together. Goldfish is a cool-water fish and Clown Loach is tropical, so the usable temperature range decides this pairing. There is no shared temperature: Clown Loach needs 77–86°F and Goldfish needs 50–74°F. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Clown Loach and Goldfish
Factor	Clown Loach	Goldfish	Verdict
Temperature	77–86°F	50–74°F	❌ No overlap
pH Range	6.0–7.5	6.5–8.0	✅ 6.5–7.5
Temperament	peaceful	peaceful	✅ Compatible
Adult Size	12 in	12 in	✅ Similar
Min. Group	5+	1+	See below
Min. Tank Size	100 gallons (for both species)		—

Compatibility Positives

Temperament risk is relatively low when normal group sizes are maintained.

Incompatibility Reasons

Goldfish is a cool-water fish and Clown Loach is tropical, so the usable temperature range decides this pairing.

There is no shared temperature: Clown Loach needs 77–86°F and Goldfish needs 50–74°F.

Their pH ranges overlap only partly, so aim for the shared band and keep it steady.

Species Profiles

Clown Loach — Chromobotia macracanthus

Clown Loach and Goldfish compatibility — Clown Loach

Striking striped loach that grows very large. Peaceful with fish but will eat shrimp, snails and tiny fish.

→ Full Clown Loach care guide

Goldfish — Carassius auratus

Clown Loach and Goldfish compatibility — Goldfish

Classic pond and aquarium fish that prefer cool water. Heavy waste producers that require robust filtration. Will eat small fish and shrimp.

→ Full Goldfish care guide

Frequently Asked Questions

Can Clown Loach live with Goldfish?

Generally not recommended. Clown Loach and Goldfish are generally not recommended to be housed together. Goldfish is a cool-water fish and Clown Loach is tropical, so the usable temperature range decides this pairing. There is no shared temperature: Clown Loach needs 77–86°F and Goldfish needs 50–74°F. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Clown Loach and Goldfish together?

A minimum of 100 gallons is recommended for keeping Clown Loach and Goldfish together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Clown Loach and Goldfish?

There is no safe shared range: Clown Loach needs 77–86°F and Goldfish needs 50–74°F.

Is a Clown Loach aggressive toward a Goldfish?

Clown Loach is peaceful and Goldfish is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Clown Loach and Goldfish

Use the scenario that matches the actual group sizes and temperament you plan to keep.

Scenario	Tank	When it applies
Minimum viable	100 gal	Only for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community	150 gal	Adds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup	220 gal	Best when keeping larger schools or reducing territorial pressure.

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