Potato Puffer

Potato Puffer (Tetraodon miurus)

The Potato Puffer, also known as the Congo Puffer or Tetraodon miurus, is one of the most fascinating freshwater puffers in the aquarium world. Its name comes from its chunky, round shape and earthy coloration, which make it resemble a small potato lying on the substrate. This species is native to the Congo River Basin in Central Africa, where it lives among sandy and rocky riverbeds, perfectly camouflaging itself while waiting to ambush unsuspecting prey. The Potato Puffer’s ability to blend into its surroundings and its bold personality make it a true showpiece for experienced aquarists.

Typically reaching about 4–5 inches (10–13 cm) in length, the Potato Puffer is a compact yet powerful fish. It thrives in aquariums of at least 40 gallons, with fine sand as the substrate, allowing it to burrow and hide just like in the wild. They prefer water temperatures between 76–82°F (24–28°C) and a neutral pH. Smooth decorations, stones, and open areas create an ideal balance between cover and space for exploration. This species is best kept alone, as it can be aggressive toward tankmates.

The Potato Puffer is a true ambush predator. Instead of actively chasing food, it buries itself in the sand and waits for the perfect moment to strike. Its diet should include snails, shrimp, worms, and small crustaceans, which also help maintain its continuously growing teeth. Watching this fish hunt is one of the most fascinating behaviors in the aquarium hobby — every movement is deliberate, patient, and calculated.

Despite their solitary nature, Potato Puffers often develop a surprising bond with their keepers. They recognize feeding schedules and even appear to “beg” for food when they sense movement outside the tank. Their intelligence and expressive eyes give them a unique personality that sets them apart from most freshwater species. With proper care and water quality, Potato Puffers can live for 8–10 years, making them a rewarding long-term companion for serious aquarists.

For more verified scientific information about this species, visit FishBase.

Frequently Asked Questions (FAQs)

1. How big does the Potato Puffer get?
They typically grow up to 4–5 inches (10–13 cm) long.

2. Can Potato Puffers live with other fish?
No, they are territorial and should be kept alone.

3. What do Potato Puffers eat?
They prefer snails, shrimp, worms, and meaty foods that help maintain their teeth.

4. What kind of tank do they need?
A minimum 40-gallon tank with sand substrate and good filtration.

5. How long do Potato Puffers live?
They can live 8–10 years or longer with excellent care.