Defining Characteristics:

• Great beginner thumbnail
• Contrasting black and yellow coloration
• Shy
• Easy to breed
• Quiet call
• Small
• Great in pairs or groups

Name: Ranitomeya sirensis 'Biolat'. Formerly known as Dendrobates sirensis, this frog is commonly known as the Pasco Poison Dart Frog due to it's range in the wild. Recent taxonomic revision reclassifies sirensis as R. sirensis. This specific morph used to be called 'Ranitomeya biolat.

Recommended Vivarium Size: A 10 gallon aquarium is suitable for 2-3 Ranitomeya sirensis, but Josh's Frogs recommends a 20H or 18x18x18 Vivarium for 1-3 frogs. Not sure how to set up a vivarium? Please watch our video on How to Set Up a Vivarium.

Temperature: Ranitomeya sirensis 'Biolat' can tolerate a temperature range of 65 F to 80 F, but prefer temperatures in the low to mid 70s. Temperatures over 85F are dangerous.

Humidity: Like most poison dart frogs, sirensis prefer a humidity range of 80 – 100%, but can tolerate humidity down to 50% for short periods of time if the frogs have access to water. Low humidity levels, especially without access to water, can quickly be fatal.

Size: Adult female and male R. sirensis 'Biolat' are similar in length, measuring in at around an inch. All of the Ranitomeya sirensis 'Biolat' froglets Josh's Frogs sells are well started juveniles, and measure approximately 1/2” long.

Age: Ranitomeya sirensis 'Biolat' is capable of living well over 10 years in captivity under ideal conditions, although a lifespan of 5-8 years is more common. All sirensis for sale at Josh's Frogs are well started juveniles, and are 2-3 months old.

Feeding: Like most poison dart frogs, sirensis prefer smaller foods. All of the thumbnail dart frogs sold by Josh's Frogs will readily eat Drosophila melanogaster fruit flies. Adult Ranitomeya sirensis will readily consume Drosophila hydei fruit flies and pinhead crickets. All ages of poison dart frogs will enjoy springtails and isopods. All feeder insects should be dusted with a vitamin/mineral supplement. For more information on what poison dart frogs can eat, please visit our How-To Guide on Feeding Poison Dart Frogs.

Sexing: Ranitomeya sirensis 'Biolat' are fairly easy to sex as adults. Females are much wider than males, as they lay eggs frequently. Josh's Frogs sells 2-3 month old juveniles that are not sexable unless otherwise noted. For more information on sexing poison dart frogs, please visit our How-To Guide on Sexing Poison Dart Frogs.

Color/Pattern: Biolat are a contrasting black and yellow color, with thin pinstripes of gold along the back. Josh's Frogs does not recommend, support, or endorse line breeding as we believe this leads to weaker captive animals and nature has done a wonderful job of creating an amazing variation in color and pattern of poison dart frogs already.

Social Behavior: Ranitomeya sirensis 'Biolat' do well housed in groups their entire life as long as enough space is provided. Josh's Frogs recommends approximately 5 gallons per frog. As they reach sexual maturity at 5-8 months of age, the social dynamic in a group of sirensis dart frogs may change and females may eat each other's eggs, although most will even breed together in the same film canister! Josh's Frogs strongly recommends against housing different species/morphs of dart frogs - for the health of your pets, please avoid mixing! Josh's Frogs recommends purchasing multiple frogs if you are interested in breeding them – this greatly increases the chances of getting a pair.

Breeding: Sirensis are one of the easiest poison dart frogs to breed. Best bred in groups, males call to attract a female to a suitable egg laying site. Then, 4-8 eggs are laid on a smooth surface (often in a film canister or a bromeliad). The eggs hatch into tadpoles, which then take 60-80 days to complete metamorphosis into miniature versions of the adults. Tadpoles will feed on dead fruit flies, the standard frog and tadpole bites/sera micron fare, and even unfertilized eggs if left in with the adults! For more information on breeding and raising poison dart frogs, please read our tips on Breeding Poison Dart Frogs.

Natural Range: Ranitomeya sirensis 'Biolat' hails from southern Peru, where it iinhabits Manu National Park.

History in the Hobby: This thumbnail has never been common in the hobby, and is still quite rare. The animals we work descend from a group brought in by Understory Enterprises.

Links of Interest:
Dendrobates.org - article on Ranitomeya sirensis

Pasco Poison Dart Frog - Wikipedia

DendroBase article on R. sirensis

Ranitomeya sirensis caresheet on Dendroboard

Josh's Frogs Blog on Thumbnail Dart Frogs

Still not sure if Ranitomeya sirensis 'Biolat' from Josh's Frogs are the right poison dart frog for you? Read the reviews below and see what other customers are saying!