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Reptile and fish lifespan guides
For reptiles and fish the tank is the lifespan: UVB, heat gradients, water quality and space explain most of the gap between the 3-year bearded dragon and the 15-year one. Each guide gives the ranges by care level and an age converter scaled to the species.
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Lifespan and age
How Long Do Bearded Dragons Live?How long do bearded dragons live? 8 to 12 years typically, 15 plus with excellent husbandry; record 18.How Long Do Leopard Geckos Live?How long do leopard geckos live? 10 to 20 years typically, males often to 20, some past 25.How Long Do Tortoises Live? Lifespan by SpeciesHow long do tortoises live? Hermann's and Greek 50 to 80 years, Russian 40 to 50, sulcata 70 to 100, giants 100 plus.How Long Do Goldfish Live?How long do goldfish live? 10 to 15 years in a proper tank, 20 plus in ponds, 1 to 3 in a bowl.How Long Do Betta Fish Live?How long do betta fish live? 2 to 5 years typically, up to 7 with excellent care, often a year old at purchase.