Bah... I keep missing questions... Tracking info on your snakes can be done manually, or you can do it online through iHerp. I've just started using iHerp recently and so far I'm liking it. I only use it to track sheds and feedings, but it helps me keep my records somewhere I won't lose them.

If you're asking how you find out the length/weight etc of your snake, well, you weigh and measure them. lol. If you don't already have one, I would suggest getting a gram scale. You can find some online or you can go with kitchen scale from Walmart. Just make sure you get one that's digital, weighs in single gram increments and can go up to 5kg. You can put your snake into a bowl to weigh it on one of those scales. Getting a length measurement is a lot more tricky. My snakes generally don't cooperate and lay out straight right next to a ruler or tape measure for me. Length isn't really as important as weight, so I don't even worry about length personally.