The alligator snapping turtle is a slow growing species. Nowrthless, given the proper amount of food and proper maintenance, they will soon outgrow their baby stage.

Below is a table indicating a growth of a baby alligator snapper (from my personal collection) during it's first two years:

Year: 1998 ; the measurements taken in [ cm ]
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
		4.9 4.3	5.6 4.8	6.0 5.2	6.3 5.4	6.3 5.4	7.7 6.6	7.7 6.6	7.7 6.6	7.7 6.6	8.0 6.8
Year: 1999
8.3 7.1	8.5 7.2	8.6 7.2	8.7 7.4	9.5 7.8	10.3 8.4	10.9 9.1	11.0 9.2	11.0 9.2	11.4 9.3	11.6 9.5