Indian Peacock Eel (Macrognathus siamensis) | Freshwater Spiny Eel

Indian Peacock Eel (Macrognathus siamensis) | Freshwater Spiny Eel

The Indian Peacock Eel (Macrognathus siamensis) is a fascinating freshwater fish known for its elongated body and distinctive eye-like spots along its tail. Despite its eel-like appearance, it is a peaceful species that does well in properly set up community aquariums.

These eels are natural burrowers and thrive in aquariums with soft sand substrate, plenty of hiding spots, and calm tank mates. Their unique behavior and appearance make them a standout addition to any freshwater aquarium.

Why You’ll Love It

• Unique eel-like appearance with eye-spot markings
• Peaceful temperament for community aquariums
• Interesting burrowing and hiding behavior
• Great centerpiece fish for specialty tanks
• Compatible with many non-aggressive species

Care Requirements

• Scientific Name: Macrognathus siamensis
• Common Name: Indian Peacock Eel
• Temperament: Peaceful
• Size: Up to 10–12 inches
• Tank Size: 30+ gallons (larger preferred)
• Water Temperature: 75–82°F
• pH: 6.5–7.5
• Diet: Carnivorous (frozen, live, and sinking foods)

Tank Setup

A soft sand substrate is essential for Peacock Eels, as they like to burrow. Provide caves, driftwood, and plants for hiding. A tight-fitting lid is recommended since they can be escape artists.

Tank Mates

Indian Peacock Eels do best with peaceful to semi-aggressive fish that are too large to be eaten. Avoid very small fish, as they may be seen as food.

• Peaceful cichlids
• Gouramis
• Larger tetras
• Loaches and catfish

Feeding

Feed a varied diet of frozen or live foods such as bloodworms, brine shrimp, and small meaty foods. They may take time to accept prepared foods but can adapt with consistent feeding.

Frequently Asked Questions

Are Indian Peacock Eels aggressive?

No, they are generally peaceful but may eat very small fish.

Do Peacock Eels need sand?

Yes, sand is highly recommended since they naturally burrow into the substrate.

Can they live in community tanks?

Yes, as long as tank mates are not small enough to be eaten and are not overly aggressive.

Do they escape tanks?

They can, so a secure lid is strongly recommended.