Is this a normal growth graph?

[Felix]

Hi I'm just wondering if these growth graphs look OK? Both are Northerns (both suspected male) about 2 years and 11 weeks old.

[Justincalhoundvm]

Growth seems both slow and incomplete to me. All of my northerns are at least 50% larger by weight. Additionally, while my growth tends to have some ups and downs week to week (I weigh them weekly) overall they grow pretty quickly. My easterns are younger and mostly larger as well.

I have noticed that my tanimbars in general are growing a little bit more on the slow and steady side as compared to my Aussie subs

[Felix]

Do You have any idea of what the problem could be? Neither lizard looks underweight but we are a bit south of the natural distribution so they bay be brumating for longer than in the wild (still I cant imagine this accounts for all the missing growth).

[Justincalhoundvm]

Lots of variables could be at play here. Genetics could be one as not all animals will achieve the same growth. With most reptiles heat and calories are a contributing factor. Were they brumated? How much and often are you feeding? Additionally just because they are smaller doesn't mean they aren't healthy.

[Felix]

I think the key may be brumation I am south of their natural range so they will probably brumate for longer - they both seem healthy.

[Justincalhoundvm]

Makes sense. I'm in the states and it's common here to work to prevent brumation unless they are ready to breed afterwards