Breeding / Frogs, newts and turtles
River cooter
Frogs, newts and turtles · Easy

Breeding the river cooter

Egg layer: mating in water in spring; females nest on land in late May-June (some into summer), often within 30 m of water, and lay 2-3 clutches a year. Hatchlings emerge August-September or overwinter in the nest.

Step by step

Pairing

Pair.

Breeding tank

Large pond or tank.

What starts it

Warm season.

Eggs and young

4-30 eggs per clutch (usually about 15-20), 2-3 clutches a year; incubation 70-100 days.

Raising the fry

Hatchlings are fully independent: house them in shallow warm water with a basking spot and feed small pellets, worms and daphnia daily.

Common mistakes
  • Undersized tank and weak filtration
  • No UV or basking heat (soft shells, poor growth)
  • Releasing unwanted turtles into the wild

Male or female

Males are slightly smaller than females, with longer front claws and long thick tails with the vent beyond the shell rim; females have short tails.

Can I breed it in my tank?

  • Good for a first breeding project.

Day-by-day plan

Typical for frogs, newts and turtles

  1. Day 0Eggs

    Needs a special setup. Read the species guide first.

A general guide for this breeding type. Days change with temperature and species.

Simulator: guided

Stage 1 of 1Eggs

Needs a special setup. Read the species guide first.

Simulator: try it yourself

Set up a virtual breeding tank and see what would likely happen.

No spawning
  • Without live or frozen food the parents aren't in breeding condition.

An educational estimate from the breeding rules, not a promise.