Axolotl growth rate?

[Pigalit]

I was wondering how big a 4-5-month axolotl should be? My axie was born December 2020 (not sure of the date)
I've looked up other axie's in comparison to mine that are also 5 months and mine is significantly smaller. I got her at 3 inches in March and they're now around 4 inches maybe?

I've attached pics of them at 3 inches and a pic of them now. And other axie's that are 4 months old. I know they grow at different rates but just need some input

 

[xxianxx]

Growth rates vary drastically and are dependant on food supply, temp and individual growth rates. At 3 or 4 months the biggest in a batch could be 3"-4" whilst the smallest could be an inch. At a year the biggest could be 9" the smallest 5". Aslong as they are healthy its not an issue , just keep similar sized axolotl together to reduce chances of predation.