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

Breeding the black marsh turtle

Nests on land, mainly April-June; in the wild females lay 3-4 clutches of only 1-2 large eggs each. Courting males bob their heads and bite the female's legs and shell.

Step by step

Pairing

Pair.

Breeding tank

Large aquatic tank with land.

What starts it

Warm season.

Eggs and young

1-2 eggs per clutch (captive clutches usually a single elongated egg, about 52 x 28 mm); incubation 68-84 days at 29-30 °C, up to 112 days at 25 °C; hatchlings 4.3-4.6 cm.

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 have a slightly concave plastron and a thicker, longer tail; females have a flat plastron and usually keep the pale head spots, which fade in adult males. Both sexes reach about the same size.

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.