I currently have a 75g with a juvenile blood parrot, geo, severum, and I added some Africans. I have had no aggro problems at all. In fact, everyone gets along well. The Ph is 8.3 and all is active and colorful. I've been told, " you cant do it, its not fair to the parrot and severum" Everybody wants to cry about something. These guys have got along for the past 2 months just fine. No physical problems either. In fact, my parrot no longer hides all day long. He's out and about with the red sev all day. The geo may grow out though and I still may look for a new home for the new worlds. Waddya guys think?
http://www.youtube.com/watch?v=W75e0ACI8u8
http://www.youtube.com/watch?v=W75e0ACI8u8