Splash-backed Poison Frog (Yellow)

Geographical Origin and Habitat: Distributed across the primary rainforests of the southern Amazon basin in Brazil, specifically within the Tapajós and Pará river basins. This species is strictly terrestrial, inhabiting the damp, shaded leaf litter of the forest floor, seeking shelter under fallen leaves, rotting logs, and coconut shells near slow-flowing streams.

Taxonomy and Genetics: A member of the Dendrobatidae family. The 'Yellow' morph is characterized by a bright, solid lemon-yellow color patch over its back, contrasting sharply with the deep black of the rest of its body. It reaches a length of up to 4 cm.

Behavior and Habits: Terrestrial and diurnal. These frogs walk slowly along the forest floor and are relatively bold, spending much of their time in the open. Males emit a faint buzzing call to attract females during the breeding season.

Morphology: Females are typically larger, rounder, and heavier than males when mature. Males are slightly smaller, more slender, and possess functional vocal sacs used in courtship.

Terrarium Setup: Best kept in a spacious, vertically short terrarium (e.g. 60x45x45 cm) for a small group. Use a thick layer of drainage substrate (such as clay balls) covered by leaf litter (oak or ketapang leaves) to provide hiding spots. Include pieces of cork bark and mosses, avoiding tall climbing branches as they are primarily terrestrial.

Lighting and Heating: Requires a warm tropical climate, with daytime temperatures between 24 and 26°C. Temperatures should not exceed 28°C, as overheating is fatal. A slight drop to 21°C at night is beneficial. Provide low-intensity UVB lighting (typically 5%) to prevent metabolic bone disease.

Humidity and Hydration: Maintain high humidity levels between 80% and 90% through regular misting with purified water. Proper ventilation is critical to prevent stagnant air and bacterial infections such as red leg syndrome. A shallow water bowl or damp moss area should always be available.

Feeding and Supplementation: Strictly insectivorous, feeding on small live prey such as fruit flies (Drosophila hydei and melanogaster), springtails, and micro-crickets. Food must be dusted with calcium and vitamin D3 supplements three times a week to prevent nutritional deficiencies.

Compatibility: A peaceful species that can be housed in small groups or harems (e.g. two males and four females in a suitable setup). They do not display the intense territorial aggression seen in some other dendrobatids. Avoid mixing with other species or genera to prevent cross-contamination.

Health and Common Diseases: Highly sensitive to skin toxins and chemicals. Handling should be avoided, as oils and soap residues on human hands can cause fatal irritation or stress. Common health issues include bacterial infections from poor sanitation and dehydration from inadequate misting.