Dendrobates tinctorius, the dyeing poison frog, comes from the Guiana Shield region of northeastern South America — Suriname, French Guiana, Guyana, and northern Brazil. The common name comes from an old (likely apocryphal) story that indigenous people rubbed the frogs on young parrots to change their feather colors. As with all captive-bred dart frogs, these animals carry no toxins.

Tinctorius are among the largest dart frogs, with some morphs reaching over two inches. Their size makes them easy to observe and a real centerpiece in a planted vivarium. They are generally bold, often claiming a favorite perch or patrol route in their enclosure.

This species produces an extraordinary range of color morphs. Blues, yellows, whites, and blacks combine in patterns unique to each locale — Azureus is solid blue, Cobalt morphs have deep blue legs with yellow or white backs, Citronella is brilliant yellow, and many others exist. Care requirements are straightforward: temperatures in the mid-to-upper seventies, high humidity, and a well-planted enclosure with hiding spots. Most morphs are suitable for keepers with at least some dart frog experience, though a few like Azureus are beginner-friendly.