Carinotetraodon Borneensis

Datasheet

General Description

The Carinotetraodon Borneensis, also known as the Red-eyed Puffer, is a species from the Tetraodontidae family known for its toxic puffer flesh and unique morphological adaptations. This species is relatively uncommon in the aquarium trade but is distinguishable by its lack of distinct dark bars, unlike its congener, C. salivator, making it part of the "red-eyed puffers" group.

Aquarium Setup

For optimal care, Carinotetraodon Borneensis requires a well-decorated aquarium with driftwood, aquatic plants (including floating varieties for shade), and dried leaf litter to promote a natural environment. The tank setup should include cover and space, ensuring a non-strong water flow from the filter and regular small water changes due to the species' sensitivity to deteriorating conditions.

Behaviour

Red-eyed Puffers are less aggressive compared to other members of the genus. While loosely gregarious, males can exhibit territorial behavior. They are best maintained alone or with peaceful, schooling cyprinids that are large enough to avoid predation yet not competitive or threatening in size.

Feeding and Diet

Being a part of the Tetraodontidae family, the Red-eyed Puffer lacks true teeth but has modified jawbones for feeding. Their diet consists of shelled invertebrates, aufwuchs, chopped shellfish, small earthworms, and live or frozen chironomid larvae. It is recommended to avoid dried products as the primary component of their diet.

Reproduction & Dimorphism

The reproductive behavior of Carinotetraodon Borneensis is unrecorded, but related species scatter their eggs among vegetation with male parental care during incubation. Males display distinct color patterns with orange and red markings, while females possess broader, paler features with irregular markings and hyaline fins. Both genders have red eyes, but males may appear greenish-blue.

Habitat and Distribution

The Red-eyed Puffers are found in southern Sarawak state, Malaysia, specifically in river systems like Sarawak, Sadong, and Rajang. They likely inhabit sluggish marginal zones with submerged terrestrial or aquatic vegetation, preferring natural habitats with ample cover and plant life.