Characteristics

The White Spot Tetra (Axelrodia stigmatias) is a small, vibrant freshwater fish from the family Characidae. Known for its striking white spots and shimmering body, this species thrives in a peaceful community aquarium. It prefers densely planted tanks with soft, acidic water and subdued lighting to mimic its natural environment. Ideal water parameters include a pH of 5.0–7.0, a hardness of 2–12 dGH, and temperatures of 22–26°C (72–79°F). Its care difficulty is moderate, requiring careful attention to water quality and tank setup.

Origin and Distribution

Native to South America, the White Spot Tetra is primarily found in the slow-moving rivers and streams of the Amazon basin. Its natural habitat is characterized by soft, tannin-rich waters with abundant vegetation and leaf litter, providing plenty of hiding spots and a dark substrate that enhances its coloration.

Colors and Markings

The White Spot Tetra is celebrated for its translucent body, accented with shimmering white spots along its flanks. Its dorsal and anal fins are often edged with a faint red hue, adding to its appeal. These features make it a standout choice for aquarists seeking a visually striking, yet subtle, addition to their tank.

Tankmates

Peaceful by nature, the White Spot Tetra is an excellent candidate for community tanks. It thrives in schools of six or more, which helps reduce stress and enhances their natural behaviors. Suitable tankmates include other small, non-aggressive species such as Neon Tetras, Corydoras, Harlequin Rasboras, and Otocinclus catfish. Avoid housing them with larger, predatory fish.

Care Requirements

To replicate their natural environment, provide a densely planted tank with plenty of hiding spots, such as driftwood, caves, and live plants. Maintain excellent water quality by using a good filtration system and performing regular water changes. Subdued lighting is recommended to prevent stress and to highlight their unique coloration.

Diet and Feeding

The White Spot Tetra is an omnivore, thriving on a varied diet of high-quality flake foods, micro pellets, and live or frozen options like brine shrimp, daphnia, and bloodworms. Supplement their diet with occasional plant-based foods to ensure balanced nutrition.

Gender Differences

Identifying males and females can be challenging due to their similar size and coloration. However, females tend to have slightly rounder, fuller bodies, especially during the breeding season, while males may display more vivid coloration and a slimmer profile.

Breeding

Breeding White Spot Tetras in captivity requires precise conditions. A separate breeding tank with soft, acidic water (pH 5.5–6.5) and a temperature around 25°C (77°F) is ideal. Provide fine-leaved plants or spawning mops as egg-laying sites. After spawning, remove the parents to prevent them from consuming the eggs. Eggs typically hatch within 24–48 hours, and the fry can be fed infusoria or finely crushed flake food once free-swimming.

Additional Resources

For more information on maintaining a thriving aquarium, consider reading about other small characins like Ember Tetras (Hyphessobrycon amandae) and Glowlight Tetras (Hemigrammus erythrozonus). These species share similar care requirements and make excellent companions for White Spot Tetras.

The White Spot Tetra is a delightful addition to any aquarium, captivating hobbyists with its beauty and peaceful demeanor. With proper care, these tiny fish can thrive, adding life and movement to your aquatic setup.