I have 2 questions. 1. How to I earn money in game? 2. Whats the difference between a purebred and inbred pet?

Purebred pets are pets descended from a singular Theme (you can check out the sylestia wiki page on themes)
So as long as the pet is only descended from that one theme- every ancestral line leading back to a singular, matching theme name, it's purebred.

Inbred just means that somewhere in a pet's lineage there's a double-up, the same pet might be its grandparent on its mother's side and its great-great grandparent on the father's side.

As far as we're concerned, doing missions (I believe they're first accessible as soon as you first reach Esior's Haven?) is the best way, because succeeding averagely or well gets you Mission Reward Satchels (which can give you additional gold, equipment that you can either use or sell, and healing items.) Once you eard enough gold you can buy more mission slots in the Esior Plaza.
There's a guide on doing missions in the Player Guides section.

There's also quests that can be obtained from the Quest Board in Esior.

Thx! That was quite helpful!

New question, how do I get nets?

you can buy the traps in the towns market. The masterfull are an exeption as they can be buy from other player or diamond shop, they are the only kind of trap that you can trade and will catch without failing (they do cost a lot so think twice before using one ^-^).

Thx! Check out my thread!

If your in desperate need of pets there are threads that give away gold

Sent you some avi items!