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InvertebratemediumFreshwater

Tangerine Lobster

Cherax holthuisi

AnimaliaArthropodaMalacostracaDecapodaParastacidae

📍 Eastern Australia

Ask Finn

The Tangerine Lobster is a vibrant freshwater crayfish from Australia, prized for its brilliant orange coloration and active personality. This species is moderately hardy and makes an engaging addition to larger aquariums, though it requires secure hiding spaces and careful tankmate selection due to its opportunistic predatory nature.

Size4.7"
Min Tank30g
semi-aggressive
Zonebottom

Care Guide

Diet

Feed sinking pellets 3-4 times weekly, supplemented with blanched vegetables and occasional protein sources like bloodworms or small shrimp. Provide calcium-rich foods (cuttlebone, calcium supplements) to support healthy molting cycles. Reduce feeding during molting periods.

Behavior

Nocturnal and territorial, the Tangerine Lobster spends daylight hours hidden in caves, driftwood, or PVC pipes. It is an escape artist requiring a secure, tight-fitting lid. During molting, it becomes vulnerable and may hide for extended periods. This species will readily consume slow fish, shrimp, snails, and soft plants; it is best kept alone or with robust, fast-moving tankmates in very large setups.

Breeding

Breeding in captivity is difficult and rarely successful in home aquariums. Females produce eggs but require ideal conditions and isolation to protect developing juveniles. Most hobbyists do not attempt breeding due to space and care requirements.

Common Diseases

Shell Rot (Bacterial Infection)

Symptoms

Soft spots, discoloration, or pitting on the exoskeleton; lethargy; loss of appetite

Treatment

Improve water quality (frequent water changes, reduce ammonia/nitrite), provide clean hiding spaces, and consider antibacterial treatments if severe; ensure adequate calcium intake

Molting Dysfunction

Symptoms

Inability to shed exoskeleton; stuck in old shell; lethargy; death if not resolved

Treatment

Maintain stable water parameters, provide calcium supplements, ensure low stress, and avoid handling during molting; increase water hardness slightly if deficient

Parasitic Infections (Branchiobdella, Copepods)

Symptoms

White or brown worm-like parasites on gills or body; reduced activity; difficulty breathing

Treatment

Perform frequent water changes, quarantine affected crayfish, and treat with appropriate antiparasitic medications; avoid copper-based treatments as crayfish are highly sensitive

Copper Toxicity

Symptoms

Lethargy, loss of appetite, discoloration, neurological dysfunction, death

Treatment

Immediately perform large water changes; never use copper-based medications or treatments; use only crayfish-safe treatments; check aquarium decorations and equipment for copper sources

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Quick Facts

diet
Omnivore; feeds on sinking pellets, blanched vegetables (zucchini, spinach), protein sources (bloodworms, shrimp), and calcium-rich foods to support molting
lifespan
3-5 years
max size
12 cm (4.7 in)
tank size
30 gallons minimum
temperament
semi-aggressive

Water it likes

ph
6.5-8.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
6-12 dGH
temperature
68–77°F (20–25°C)

Stats

Community tips0
Kept by0 hobbyists