Rubber Ducky Isopods (Cubaris sp.)

Rubber Ducky Isopods for Sale (Cubaris sp.)

Quack. (Okay, they don't actually quack.)

Rubber Duckies are one of the most iconic isopods in the hobby, famous for little faces that look just like tiny rubber ducks. They were also one of the very first isopods that caught our eye at the reptile show where Holy-Poly began, so they hold a special spot around here.

Many keepers enjoy them simply as display pets. They spend a lot of time under the leaf litter, so every sighting feels like a little win, and they always seem to bring a smile to people's faces.

Origin: Rubber Ducky Isopods are a tropical Cubaris species native to Thailand. They thrive in warm, humid environments and are prized around the world for their unmistakable appearance and gentle nature.

HPI Preferred Habitat Targets: 72–78°F; supporting relative humidity around 75–90%; maintain a large, persistent moist zone covering roughly 80–90% of the substrate with a smaller area that is less wet but never dry through its full depth. Use low-to-moderate ventilation to prevent stagnant air without rapidly drying the enclosure. Recommended substrate depth 3-4" or deeper for burrowing.

Diet: Their primary diet should consist of decaying leaf litter and rotting hardwood. They also benefit from a quality calcium source, such as limestone, along with supplemental foods including quality isopod diets, vegetables, fruits, and protein offered in moderation.

Reproduction: Slow to Moderate.

Perfect For: Intermediate keepers, collectors, tropical bioactive enclosures, display terrariums, and anyone who's ever wanted a rubber duck that's actually alive.

Ordering: Priced per isopod, with a minimum of 3 per species. Starting a new colony? We recommend 6–20 (see How Many Isopods Should I Get?). Bulk discounts apply automatically. Collect the family: White Ducky and Blonde Ducky.