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Species profile

Red-tailed Redeye Puffer

Carinotetraodon irrubesco

Common names: Red-tailed Redeye Puffer

Recognized speciesPufferfish
Red-tailed Redeye Puffer (Carinotetraodon irrubesco)

Adult size

Up to 4.5 cm

Up to 4.5 cm

Countries of origin

  • See all stock from Indonesia

Good fit for your tank?

Good fit for

  • A densely planted tank with one puffer or a small, well-spaced group
  • A keeper who enjoys feeding snails and frozen foods

Think carefully if

  • You also keep shrimp or snails you want to protect, because this puffer will eat them
  • You want a busy community tank

A small Indonesian puffer with a reddish tail on the male. It is calmer than some redeye puffers, but it is still a meat eater that is best kept away from long fins.

Appearance and Identification

A small puffer with bulging red eyes that sit clearly above the head. Males are greyish and faintly mottled, with a reddish tail fin and a pale stripe behind the eye, and they lack the black spot at the base of the dorsal fin seen in other redeye puffers.

Told from other redeye puffers by the male's red tail and the lack of a black spot at the base of the dorsal fin.

Males have the reddish tail and a mottled grey body, sharply separated from a white belly. Females look different and plainer.

Tank Requirements

Suggested filter
About 110–160 litres an hour
Suggested heater
About 50–75 W for this tank
Minimum tank volume
54 litres
Minimum tank length
60 cm
Minimum group size
1
Recommended group size
1
Activity level
Moderate
Flow preference
Very low
Planting preference
Heavily planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Use dense planting, wood and floating cover, with gentle flow. A group needs more room, so that each male can hold his own area.

Behaviour and Tankmates

Less aggressive than some redeye puffers, but still a watchful hunter. It stays around plants and may rest among them.

Only loosely social. Keep it alone, or as a group only in a well-planted tank with enough space.

Males in particular defend territories.

Keep it alone, or with peaceful schooling fish of a size that cannot be eaten and offers no threat. It may nip long fins, and it will eat shrimp and snails.

Check tankmates for this species

Water Parameters

Temperature
20–28 °C
pH
6–7.5
GH
2–12
Stability importance
Very important

Soft to moderately hard freshwater. One habitat in Borneo was murky brown water at about pH 6.

Parameter caveat
Puffers are messy feeders and sensitive to waste, so keep up regular water changes and use a filter rated for a larger tank.

Feeding

Diet types
Carnivore
Feeding frequency
Daily
Preferred foods
  • Snails with the shell onEssential. Crushing shells wears down the beak, which never stops growing.
  • Frozen or live worms and shrimpGood everyday variety between shelled meals.

A carnivore. Feed live and frozen meaty foods, with snails or other shelled food to wear down the teeth.

Check the beak regularly. If it overgrows, the fish can no longer eat and the teeth may need to be trimmed by someone experienced.

Breeding

Breeding difficulty
Difficult
Parental care
Unknown

Has been bred in aquariums, with at least one documented account. The male can be rough with females before spawning, so give plenty of cover.

Habitat and Origin

Geographic origin
Indonesia, Southeast Asia
Natural habitat
Slow River, Vegetated Shoreline
Aquarium contexts
Planted Aquarium, Species-Only Aquarium
Audience level
Intermediate

Classification

Profile type
Recognized species
Genus
Carinotetraodon
Family
Tetraodontidae
Species group
Fish, Pufferfish

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