The Bronze Puffer, scientifically known as Auriglobus modestus, is a lesser-known species in the pufferfish family that offers a unique charm and challenge for the dedicated aquarium enthusiast. Native to the freshwater and brackish water environments of Southeast Asia, including Thailand, Malaysia, and Indonesia, this species is recognized for its modest bronze to olive coloration, which can change intensity based on the fish's mood, environment, and health status. Unlike the more commonly known marine pufferfish, the Bronze Puffer is a freshwater species, making it an intriguing choice for freshwater and brackish aquarium setups.

Auriglobus modestus is relatively small compared to some of its pufferfish relatives, but it still requires a spacious tank to accommodate its territorial nature and provide ample room for exploration and comfortable living. This species is known for its strong personality and curious nature, often inspecting new additions to the tank and interacting with the environment in unique ways.

The Bronze Puffer's diet in the wild primarily consists of small invertebrates, crustaceans, and mollusks, which helps in the wear down of their continuously growing teeth. In captivity, their diet should be varied and include a mix of meaty foods such as snails, which are particularly beneficial for tooth maintenance, along with shrimp, worms, and prepared foods suitable for carnivorous fish. Offering a diverse diet not only ensures their nutritional needs are met but also provides environmental enrichment.

One of the challenges in keeping Auriglobus modestus is their sensitivity to water conditions. The tank must be well-maintained with pristine water quality, as pufferfish in general are susceptible to stress and disease if water parameters are not kept within suitable ranges. Regular water changes, efficient filtration, and careful monitoring of water chemistry are crucial to keep the Bronze Puffer healthy.

Breeding the Bronze Puffer in captivity is rarely reported and can be quite challenging due to the specific environmental and social conditions required to trigger spawning behavior. As such, breeding efforts are typically left to more experienced aquarists or specialized breeding facilities.

When considering tank mates for Auriglobus modestus, caution must be exercised. Their sometimes aggressive and territorial demeanor makes them best suited for species-specific setups or with carefully chosen, similarly sized and temperamentally compatible fish. It's essential to avoid housing them with very small, slow-moving, or long-finned fish, as the Bronze Puffer may show aggression or nipping behavior.

In summary, the Bronze Puffer offers a unique opportunity to add a fascinating and interactive species to the home aquarium. Their care requires a commitment to providing a suitable environment, a balanced diet, and meticulous attention to water quality. For aquarists willing to meet these needs, Auriglobus modestus can become a rewarding and engaging centerpiece of a well-maintained freshwater or brackish water aquarium.