How to care for a baby spider?

Tiny spiders like this can be hard to keep, because you will need to find insects like aphids and mites for food. When they get a little bigger, they can eat fruit flies as well.

As for keeping pet spiders, it is not hard or expensive, but you really might consider something bigger.

You can read about keeping spiders below:

http://boyslife.org/hobbies-projects/funstuff/1282...

http://www.wikihow.com/Keep-Spiders-As-Pets

Anyway, the idea is to set up a natural habitat and environment for your pet, but in captivity, you will need to provide food and water.

You could collect aphids or tiny insects for food:

http://www.aphidsonworldsplants.info/Methods.htm

Even raising your own feed insects:

http://insected.arizona.edu/gg/resource/rearing.ht...

I have not had much luck with spiderlings, save for a few wolf spiders, but have kept all sorts of spiders for pets.