Just like with people, animals body shape and mass vary to quite a degree. Hence their weights will vary. Not all 8 inch long geckos will weigh that whether from natural body limiting factors or no. The ability for weight gain is a genetic trait...especially in animals that have to survive periods without food which is what leopard geckos were adapted to do in their home environment. These guys weren't meant to be "heavy" perpetually. They'd use the stored fat from their tails during lean times.. naturally slimming down. In captivity we don't allow that. We keep them in their fattened form.. which may not be bad for them either. But.. not all of them are going to carry the same amount of weight nor should anyone expect them to. They're individuals... not collectives. Some will weigh more at that size.. some will weigh less.. and all of them may very well be quite healthy despite the differences in weight.

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