Obligate parthenogen: every animal is a female that lays unfertilised eggs which develop into clones. Maturity comes at about 4 cm and under 6 months; under good conditions it can spawn year-round, up to about seven times in a life. Young stay under the mother's tail through two moults before becoming independent.
One animal is enough; never release them.
Closed tank with tight lid; no overflow into drains.
Seasonal temperature changes and good feeding.
Clutches of about 50 to 700 eggs depending on female size (maximum records 416-731); eggs hatch after 2-3 weeks, depending on temperature.
Juveniles are tiny crayfish; feed meaty foods and keep separate to prevent cannibalism.
One breeding tank for the marbled crayfish, drawn to scale from the breeding guide.
Water: 18–25 °C
A plan from the breeding guide and an adult size of 12 cm. Tank shape is a standard 2 : 1 : 1.2 box, at least 6 adult lengths long. Check each step in the guide above.
A rack of breeding and grow-out tanks.
The breeding guide gives no tank size for the marbled crayfish yet, so a business layout can't be drawn.
No sexing needed: all marbled crayfish are female and reproduce by parthenogenesis (cloning); no male has ever been found.
Typical for shrimp
Eggs are carried under the tail. Keep the water stable and don't move her.
After about 2–4 weeks tiny shrimp hatch. They graze on biofilm and moss.
Keep a sponge on the filter intake. Feed powdered shrimp food a little at a time.
They can breed themselves at about 3 months.
A general guide for this breeding type. Days change with temperature and species.
Eggs are carried under the tail. Keep the water stable and don't move her.
Set up a virtual breeding tank and see what would likely happen.
An educational estimate from the breeding rules, not a promise.