Complete Breeding Guide for Leopard Geckos | Cooling, Mating, Incubation, and Hatchling Care

Before You Start Breeding Leopard Geckos

Leopard geckos (Eublepharis macularius) are relatively easy to breed among reptiles, and indoor breeding is entirely possible with proper environmental setup. However, despite being "relatively simple," inadequate preparation can lead to decreased hatch rates and deterioration of the female's health. Be sure to confirm the following before breeding:

• Females must be at least 18 months old and weigh 60g or more (70g+ recommended)
• Males must be at least 12 months old with visible hemipenal bulges on both sides of the tail base
• Both individuals must have been eating and eliminating normally for the past 3 months
• No parasites, respiratory disease, or Cryptosporidium infection

Female weight management is especially critical. Egg production consumes large amounts of calcium and energy from the female's body. Dusting with calcium + D3 at least twice weekly before the breeding season to build sufficient bone density is key to successful breeding without complications.

Triggering the Breeding Cycle with Cooling (Brumation)

In the semi-arid regions of Central to South Asia where wild leopard geckos live, winter temperatures drop below 10°C. This seasonal change triggers hormone secretion and breeding behavior in the following spring. Replicating this 'cooling' in captivity significantly increases breeding success rates.

Cooling Steps: 1. Beginning around October-November, gradually lower temperature over 2 weeks (avoid sudden temperature changes) 2. Maintain a cool spot of 18-20°C and warm spot of 24-25°C for 2-3 months 3. Reduce feeding frequency to about once per week; from late December to January, feed minimally or not at all 4. Continue providing water at all times (to prevent dehydration) 5. From mid-February to March, gradually return to normal temperatures (28-32°C) over 2 weeks and resume feeding

Weigh your gecko once weekly during cooling. If weight loss exceeds 15% from the start, immediately stop cooling and return to normal care. Excessive cooling is particularly dangerous for females, as nutritional status directly affects clutch size and hatch rates.

While breeding without cooling is possible in some cases, breeding success rates and clutch sizes tend to decrease. For first-time breeders, we strongly recommend implementing cooling.