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No, a leopard gecko can live with other leopard geckos, if both are female. During the breeding season, males can be housed with females but not any other reptile, unless you want a dead gecko.
NO!
On average, the leopard gecko will live 5-10 years in the wild due to predators but in captivity, the oldest recorded leopard gecko lived to be 27 years old. Youtube "dink the leopard gecko"
A leopard gecko can weigh up to 50-100grams. They can get as long as 9in. or longer.
Asia.
No way!
In captivity? none.
Temperate Desert.
A leopard gecko typically takes about 1-2 weeks to shed its skin.
I would say somewhere by 8/12 month's possibly more depending on the leopard gecko.
no absolutely not! If your leopard gecko needs a companion try another leopard gecko (you can not pair male leopard geckos with other male leopard gecko)
my leopard gecko has also stopped eating and she is pretty old too so I think this might be the case. 19 is fairly old for a leopard gecko to live.