Grizzly Bear

Grizzly Bear Isopods (Adinda sp. “Grizzly Bear”)

The Grizzly Bear isopod is a terrestrial isopod from Vietnam, sold under the name Adinda sp. “Grizzly Bear.” It has a distinctive banded pattern, typically featuring a golden or tan central band alongside darker brown and black markings. Its formal species-level identification has not been established in the available hobby references. It is reported to grow to around 15–20 mm in length.

Care Information

• Humidity: Seller care guidance describes medium humidity, while other care references recommend higher humidity. A moisture gradient is a sensible setup, but a definitive species-specific percentage is not established.

• Ventilation: Moderate airflow is recommended to balance moisture retention with air exchange.

• Enclosure: Use a secure, well-ventilated enclosure with deep substrate and plenty of leaf litter.

• Substrate: Provide organic soil, decaying hardwood, and leaf litter.

• Diet: Primarily decaying leaves and wood. Mushrooms, mosses, and other suitable supplementary foods may also be offered.

• Temperature: Approximately 18–26°C (64–79°F) according to one specialist seller; other care references recommend 22–26°C (72–79°F).

• Habitat structure: Include cork bark, leaf litter, and sheltered areas for hiding.

• Adult size: Reported at approximately 15–20 mm (0.6–0.8 inches), with some sources specifying under 19 mm.

• Breeding: Reported to reproduce slowly in captivity. Captive breeding was established in the UK around 2023, according to a specialist seller.