well I was planning on an angel or two, the sev or two and the acara or two in a 75 gal. with some type of schooling fish, a plec maybe some cories. The jd was part of another scenario I was considering for the tank, although what krytan, suggested is intriguing. Although I would have thought a more aggresive cichlid would be necessary. If possible, I would like to not mix lakes/rivers, unless that limits my options too much. Where could I find a list of which cichlids live in the amazon or other lakes or rivers? sorry for the book.