Hi Pam, here is the website that the picture is on. it's the yellow one at the top of the page.
http://www.cichlid-forum.com/articles/mouthbrooders.php
I don't know how to describe this, but on teh picture you will see the copyright info and date.. the large bulge on our fish is in the area around the 3 (2003). does that make sense?
