I just took my level 15 troub to Nektulos to capture some aquatic (crabs) because I knew I could hit them with an arrow and capture them before they do any serious damage. What I wasn't expecting was that I only had to catch 3 or 4. Was this always the mechanic? Or is it a bug? *edit* Just took another character out for it and see that the number required was reduced from 11 to 3. YAY! Huge time saver.