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what age do leopard geckos start to slow down

Leopard geckos usually start to slow down around 8 to 12 months old, and most are close to fully grown by about 18 months. Their fastest growth is in the first 4 to 8 months, then it tapers off as they move into adult size.

Quick Scoop

  • Fast growth phase: roughly 0 to 8 months.
  • Noticeable slowdown: around 8 to 12 months.
  • Near full adult size: about 12 to 18 months, with some continuing a bit longer.

What “slow down” means

For a leopard gecko, slowing down usually means less rapid body growth , not necessarily less activity. Young geckos tend to eat more and gain size quickly, while adults grow much more gradually.

When to watch more closely

If your gecko seems to slow down too early or is losing weight, that can point to husbandry issues rather than normal aging. Things like temperature, diet, parasites, or stress can affect growth.

Simple example

A 4-month-old gecko may put on noticeable size very quickly, while a 10-month- old gecko may still grow, but only a little each month. By around 18 months, many leopard geckos are basically done growing.

TL;DR

Leopard geckos generally begin slowing their growth around 8 to 12 months , and most finish growing by 18 months.