Yabby care guide
Yabby (Cherax destructor) — minimum tank 150 L, temperature 15-28 °C, pH 7-8.5.
Overview
Yabby (Cherax destructor) is an Australasian freshwater crayfish of the family Parastacidae, listed in the Aquairi knowledge base as a beginner-level species. Australian crayfish naturally olive-brown but with a brilliant blue selectively-bred form ('Blue Yabby'). Tolerant of warm water and cooler conditions. Highly territorial.
Taxonomy
- Family: Parastacidae
- Genus: Cherax
- Scientific name: Cherax destructor
- Common synonyms: Common Yabby, Blue Yabby
Habitat
Cherax is a large Australasian crayfish genus (Parastacidae) with species distributed across Australia, New Guinea and adjacent islands. Many species are aquacultured for food and several brightly coloured forms have entered the ornamental trade since the 2000s. The Aquairi knowledge base records this entry from: Australia.
Tank requirements
- Minimum tank volume: 150 L (39.6 US gal)
- Adult size: 12-20 cm
- Temperature: 15-28 °C (59-82 °F)
- pH: 7-8.5
- GH: 12-25 °dGH
- KH: 6-14 °dKH
- Lifespan: 4-6 years
Diet
An omnivore. Diet includes plant matter, biofilm, algae, detritus and protein in the form of carrion, small invertebrates or fish remains. In the aquarium a daily portion of sinking pellet, regular blanched vegetables and occasional frozen bloodworm or shrimp meet nutritional needs and reduce intraspecific aggression.
Compatibility
Territorial and aggressive; large adults will harm tank mates and damage plants. A solo, species-only or split-by-divider setup is the only reliable arrangement. Suitable tank mates listed in the Aquairi knowledge base: Solo recommended. Should be kept away from: All fish, Shrimp, Snails, Plants.
Breeding
Reproduces in fresh water without a planktonic larval stage. After mating, the female carries the eggs glued to her pleopods for several weeks; hatched juveniles cling to the mother for additional moults before becoming independent. Stable water chemistry and abundant shelter for the brooding female are required. Cherax females typically produce moderate to large broods of comparatively large juveniles, which is one reason for the genus’ aquaculture importance.