I've read some reports that they will benefit from a wet/dry season shift. Corresponding the onset of the wet season with local low pressure fronts may or may not help. This is not something I have tried but it could work. The best success I've seen personally comes from setting them up well from the get go: large enclosure, lots of cover, good humidity and ventilation, proper temps,etc. Feed them well and otherwise leave them alone as much as possible. Make sure there are laying containers for the females. If you have live plants in pots the potting soil will often work as suitable laying substrate but supplying a container with loose soil and leaf litter with branches coming out of the soil for easy access also works.

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Zach