Oh goodness! I don't know if is profile is acceptable or if I should add more. I'm still tweaking.

http://subeta.net/petinfo.php?petid=697459 (I don't know how to make a regular link the format is diff from html or somat! Or maybe I'm an idiot)

I was also wondering if I should change his color or would it even matter!

I don't want to change the specie!

You can add as much fo as little information as you want to the profile. It looks fine to me.

As for colour, that's also up to you, it doesn't really matter, unless you want him to be different. I see nothing wrong with common pets, I still have one and I've been here for two years.