Adelphobates castaneoticus “Brazil Nut frog”

The Brazil nut frog is a lowland forest frog, which is named for the nut pods that litter the forest floor in its native habitat. Black with a myriad of small spots of orange or yellow and white, it's truly a beauty! This frog, as well as A. quinquevittatus, which comes from the same area in Brazil, is somewhat isolated from the other thumbnail frogs, with its range being about 800 miles from the Peruvian thumbnail frogs habitats. The habitat is remote enough that the frog was not classified by science until 1990.

The nut pods for which the frog is named are often used as tadpole deposition sites by the frogs. This frog is a more terrestrial frog, and while it will explore the entire tank, seems to spend more time on the floor of the tank than any of the other thumbnail frogs I have worked with.

This frog is considered by some to be illegal in the United States, in fact anywhere out side of Brazil. The government of Brazil has had a policy of not allowing the export of their wild life, and in general dart frogs have not been exported from Brazil. The story on the Brazil nut frogs is that in the early nineties, a few specimens were allowed to be exported from Brazil for use by a US institution, which shall remain nameless. These frogs apparently were released to the institution on the condition that they remain the property of the Brazilian government, and that any and all offspring would also remain the property of the Brazilian government. In addition the frogs were not to be released to any other institutions or the public. Obviously this condition was not followed, and the frogs were released to another institution, which then released offspring to the US frog hobby. I am unsure how seriously to take this, there are numerous frogs in the US hobby whose ancestors came from illegal sources, or were never legally exported from the country of origin. This list would include any frog that originates in Brazil, such as A. quinquevittatus, and A. galactonotus. To the best of my knowledge neither frog has been legally exported from Brazil, but both found there way to Europe, and then captive bred offspring were sent to the US with “legal” paperwork, generated by European governments which were not very particular about the frogs paper trail, and documentation of the breeders frogs.
none western Brazil
Terrarium Preferences
upper seventies to low eighties High No special requirements, ten gallons, ten gallon talls, fifteen gallon or twenty tall tanks all make good choices, but well planted tanks are one of the keys to seeing more of these frogs. More floor space will also promote visibility.
Visibility in the tank
Groups of these compatible
about 3/4 th inch Moderately shy Groups seem to do well together.
Experience Level
Compatible with other species?
Intermediate Most often kept by themselves, but experienced keepers might try keeping them in tanks with larger species. Allow plenty of room.
Breeding :
Status in Hobby
Often a difficult species to breed. We have set up several different groups with no results, but once a group or pair begins breeding, they are often pretty easy. However many other breeders have had problems raising tadpoles successfully.
a not uncommon frog, but not as popular as some of the flashier thumbnails. Limited bloodlines, with only one founder group. By now European breeders are reported have imported (smuggled) frogs from Brazil and there appear to be new bloodlines in Europe, however due to the “hot button” status of this species, in so far as the US Fish and Wildlife Agency is concerned, its not likely that any will be coming in to the US legally any time soon.
Update, 2010- This frog is still of uncertain legal status. In addition, due to the questionable legality of these frogs, many breeders, ourselves included, no longer work with these frogs.
Future availability of these frogs is likely to be very limited.
Our Availability
Links for this frog
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