Annual Breeding Calendar — Best Seasons by Category

Every living creature has an optimal breeding season. This article summarizes the best breeding timing and annual schedule for each category of pets and animals.

Fish Breeding Calendar

Goldfish - **Breeding Season**: March–May (water temperature 18°C and above) - **Preparation**: Low-temperature management (cooling) from December–February - **Key Point**: Rising spring water temperatures trigger spawning

Medaka (Japanese Rice Fish) - **Breeding Season**: April–October (water temperature 20°C+, 13+ hours of daylight) - **Peak**: May–July - **Indoor Keeping**: Year-round breeding possible with heater and lighting

Marine Fish (Clownfish) - **Breeding Season**: Year-round (under controlled water temperature) - **Key Point**: Stable water quality and nutrition management are essential

Tropical Fish - **Breeding Season**: Year-round (possible under temperature control) - **Guppies & Platies**: Breed readily without special conditions - **Corydoras**: Temperature drop during water changes triggers spawning

Reptile Breeding Calendar

Leopard Gecko - **Cooling**: December–January (lower to 20–22°C) - **Pairing**: February–March - **Egg-Laying Period**: March–August (4–8 clutches per season) - **Hatching**: 45–65 days after laying

Bearded Dragon - **Cooling**: December–January - **Pairing**: February–March - **Egg-Laying Period**: March–June - **Hatching**: 55–75 days after laying

Ball Python - **Cooling**: November–January (nighttime 23–25°C) - **Pairing**: December–February - **Egg-Laying**: April–June - **Hatching**: 55–60 days after laying

Bird Breeding Calendar

Budgerigar - **Best Breeding Periods**: Spring (March–May) and autumn (September–November) - **Avoid midsummer and midwinter**: Temperature stress is too high - **Key Point**: Installing a nest box triggers breeding behavior

Java Sparrow - **Best Breeding Period**: Autumn–winter (October–March) - **Key Point**: Japanese-bred Java sparrows naturally breed in autumn

Cockatiel - **Best Breeding Period**: Spring (March–May) - **Key Point**: Cockatiels are nervous—a quiet environment is essential

Insect Breeding Calendar

Japanese Rhinoceros Beetle - **Eclosion**: June–July - **Pairing**: July–August (at least 2 weeks after first feeding) - **Egg-Laying**: July–September - **Larval Care**: September–following June

Japanese Giant Stag Beetle (Dorcus hopei binodulosus) - **Activity Start**: May–June (overwintered adults) - **Pairing**: June–July - **Egg-Laying Setup**: June–August - **Larval Extraction**: August–October - **Larval Care**: October–following May

Exotic Stag Beetles (Temperate Species) - **Year-round breeding possible** (under temperature control) - **Optimal Temperature**: 20–25°C depending on species

Coral Propagation Calendar

Fragging (Division) - **Best Time**: Possible year-round, but spring–autumn (stable water temperature) is safest - **Avoid**: Summer high-temperature periods (above 30°C) - **Key Point**: Perform during periods of stable water quality

Annual Schedule Summary

• January–February: Reptile cooling, goldfish low-temperature management
• March–April: Goldfish and medaka spawning begins, reptile pairing, bird breeding season
• May–June: Medaka breeding peak, rhinoceros beetle eclosion preparation, reptile egg-laying
• July–August: Rhinoceros beetle breeding, medaka breeding continues
• September–October: Java sparrow breeding season, stag beetle larval care begins
• November–December: Reptile cooling preparation, goldfish low-temperature management begins

Finding Breeding Stock on Buri-Choku

Buri-Choku offers a wide selection of pair sales and pedigreed individuals for breeding. Purchase directly from breeders at the optimal time for your breeding plans.