So I know Oscars are fairly tame when compared to most other cichlids, but I have a lone 7" Oscar in a 48"Lx24"Wx18"H tank...my LFS got some fantastic looking 3-4" red head Tapajos geos in from Jeff Rapps that I have been eye balling for a while now. I have never kept any geo's and was wondering if 5-7 of them would be fine with the oscar for a while or if the mixing is just out of the question bad juju?