It is also a simple matter to get rid of unwanted eggs if you have a mixed sex group. Other Physical Characteristics Outside the breeding season, several other clues hint at gender, although none is as certain as the nuptial pads. Fire-bellied toads usually breed in the evening, with females releasing eggs as males eject seminal fluid and sperm to fertilize them. Males have slightly better developed forelimbs than the females, more webbing on the hind feet, more knobby backs and somewhat slimmer physiques -- females tend to look chubbier. The task is not an urgent one - the fire-bellied toad is a sociable species and no combination of the sexes is likely to fight. Note that they each female can lay up to eggs at a time and they will hatch within a couple of days, so act quickly to sterilize unwanted eggs, which can be done by freezing or boiling before you throw them out. Generally, the cooling period follows the normal cooling trend of climate in a given area, which can be as early as October for northern temperate regions many herpetoculturists cool down their herps from November 1 to March 1. If you want to raise tadpoles, remove adult frogs from the breeding tank. Female frogs ready to breed remain in a normal posture with their hind legs withdrawn toward the body. The tadpoles begin hatching by the third day. Because the toads only need the pads for a short time, they only appear during the breeding season. Breeding male frogs develop black nuptial mating pads on the insides of the thumb, second finger, and forearms, as well as on the feet. Provide surface plants or ramps to give the emerging frogs access to land. Nonreceptive female frogs grabbed by male frogs extend their hind legs and perform silent release calls, felt as body vibrations, to indicate their unwillingness to breed. If you keep large fish elsewhere, they might appreciate the eggs as a snack.