RE: Where are you all???
Thats a stunning Frog Indicus, your lucky to see them!
Diamond, the best person toask about that would be Craig .L. aka Expansa 1 , The man is turtle guru !! In general though, they must be mature, around 5 years in captivity, atleast 18-20cm carapace length, like snakes and other herps, size is important. AS other herps, most folk incubate artificially, inc times varie somewhat with species. It is ofcourse possible to allow natural incubation
in the right settings. A good area of land with sandy/loamy (diggable) soil should be provided.
Eggs laid in the water, through lack of land space will be no good after a certain time (lack of oxygen) ASk craig how long. Some folk use a bathtub with a divide siliconed and half or 1/3 land for laying.
As with any herp, its important that they are in good condition prior to introduction or season. Cooling is a facting, but again, Craig is the man you want to ask! He has a great turtle sheet, that includes notes on breeding on this site, go the left at the top of the page, click, 'feature articles' ~ 'caresheets' ~ 'other'. cheers