Northern Purple Spotted Gudgeon

The Northern Purple Spotted Gudgeon is a sturdy freshwater predator with colorful spots across its body and fins. Its watchful behavior and attractive markings make it a distinctive alternative to more familiar community fish, provided its adult size and territorial nature are respected.

Fish details

• Scientific name: Mogurnda mogurnda
• Size offered: 4 cm
• Adult size: Commonly around 10 cm; can reach approximately 17 cm
• Origin: Northern Australia and New Guinea
• Water type: Freshwater
• Temperament: Predatory and territorial, particularly when breeding

Recommended aquarium conditions

• Aquarium: 40 US gallons or larger for an adult, with additional space for companions
• Temperature: 22–28°C (72–82°F)
• pH: Near neutral, approximately 6.5–7.5

Arrange substantial plants, wood, and smooth rocks to divide the aquarium into sheltered areas. Provide open swimming routes as well as retreats, because this gudgeon uses more than the bottom alone. Fit a secure lid and maintain effective filtration without removing all calmer resting places.

Diet and feeding

Feed a varied carnivorous diet of appropriate frozen or live aquatic foods and suitable earthworms. Quality sinking carnivore foods may also be accepted. Choose pieces the fish can swallow comfortably, and watch its intake rather than relying on leftovers from faster tankmates.

Compatibility and care

Small fish and shrimp may be eaten, even when the gudgeon appears calm. Companions should be robust, too large to swallow, and comfortable in the same water conditions. Other gudgeons require generous space and broken sightlines; breeding fish can become especially defensive. Maintain a mature filter, regular partial water changes, and low waste levels. This species grows much larger and is more predatory than the Peacock Gudgeon.

Sizes are approximate. Contact Las Vegas Exotic Fish at (702) 685-5100 to confirm availability or discuss your setup.