Hi Alfredo, Actually I am in the same situation as you are. These are my first apisto's too. I keep them in a 80L (15G) tank with about 10 tetras, 4 cories and a few algae eaters. I was told A. agassizi are good beginner fish. I keep only one pair for now because I'm not really sure if I can add another couple or just females or males. How many females you can keep with your male depends on the species I believe. With some species the dominant female will kill the other female. Same for the males I think. ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com.