[quote=@Raizin]
Two things. How strong is enhanced body armor and are the instincts traits automatic?[@Life]
[/quote]

Anything stronger than human skin. Tough hides like Rhino's or Crocs. Pangolin have tough/scales. 

swim faster would be an ability rather than a trait. 

Just like the electric current is an ability because of the  electric organ trait of the eel which you have listed. 

Yes instincts traits are automatic