Biggest I have seen in the Wild was only around 40 Pounds, but I do know a Keeper with one that is easily 80 or so pounds. THe thing that impresses me the must about them is how rapidly they grow. I bought two hatchlings from a Repticon back in 2011 that are now 8 inches long and 12 inches respectfully and just massive, while in my experience other species take years to get decent size on them.
Hi John,
Thx for the feedback; snappers do seem to have a great deal of flexibility in growth [patterns, abilities etc; some populations breed at very small sizes, others grow slowly, seem to mature later, etc. Likely diet dependent but there also seems to be a pattern of very large populations being in the northern sections of their range. be careful about pushing them too fast, however. An early burst of growth is beneficial in the wild, gets them past the vulnerable stage. But continual, very rapid growth may not be ideal for long term health...no real studies, unfortunately, but anecdotal info on other species...green turtles and Blanding's come to mind - indicates that reproduction and perhaps other functions may be impaired. Sorry I do not have mpore specific info.