Dyeing Dart Frog "Regina"

Geographical Origin and Habitat: Endemic amphibians of the dense primary rainforests of the Guiana Shield (Guyana, Suriname, French Guiana, and northern Brazil). They live exclusively on the forest floor, moving through the thick leaf litter, ferns, and rocks near streams where humidity is near saturation and light barely filters through the canopy.

Taxonomy and Genetics: They are among the most imposing species of Dendrobates, reaching up to 5-6 cm in length and weighing 6-8 grams, with a robust and stocky build. The coloration features a bright yellow head and back with black flanks and blue legs or spots, characteristic of the 'Regina' morph.

Behavior and Habits: Diurnal, strictly terrestrial, and highly active frogs. Despite their warning coloration, they are shy creatures that spend their day foraging in the leaf litter for tiny insects. Males are territorial and defend small areas by producing a faint buzzing sound.

Morphology: Sexual dimorphism is subtle but visible in adulthood. Females are significantly larger and rounder, while males are more slender and have larger digital pads on their front toes to grip the female during mating.

Terrarium Setup: A bioactive horizontal or cubic terrarium (e.g. 60x45x45 cm for a pair) is required. As they are poor climbers, floor space is more critical than height. It is essential to provide a thick layer of leaf litter (sterilized oak or magnolia leaves) to provide hiding spots and support microfauna like springtails. Add coconut huts and low branches for shelter.

Lighting and Heating: They prefer cool temperatures: 22-26°C during the day with a slight drop to 20-22°C at night. They are highly sensitive to heat, and temperatures consistently above 28°C can be fatal. Plant-safe LED lighting is ideal. A low-output UVB light (e.g. 2-5%) is recommended to aid vitamin D3 synthesis.

Humidity and Hydration: Maintain constant humidity between 80% and 100%. The substrate should be damp but never waterlogged. Use an automatic misting system with short daily cycles, especially in the morning. They absorb moisture through their skin and do not require water bowls.

Feeding and Supplementation: Active micro-predators. Their diet consists of wingless fruit flies (Drosophila hydei and melanogaster) fed daily or every other day. All food must be dusted with high-quality supplements: pure calcium at most feedings, and a complete vitamin/mineral powder with D3 once or twice a week.

Compatibility: Keep individually or in a sexed pair (one male, one female). Multiple females should not be kept together as female intraspecific aggression is high, causing stress and suppressing reproduction. Never mix with other dart frog species to prevent pathogen transfer and hybridization.

Health and Common Diseases: Never handle amphibians with bare hands; human skin oils and salts can damage their protective slime coat, leading to osmotic shock. Use a clean plastic container for transport. They are susceptible to vitamin deficiencies (such as spindly leg syndrome in tadpoles) and fungal infections like chytridiomycosis.