Personally, i would not add a parachromis to that mix. None of those fish possess the attitude or weapons to compete with a jag over territory.
It might be fine when theyre all small but once theyve matured i see a lot of those fish becoming carcasses and the rest constantly hiding in fear, even in a 300.
Agree with this, all but the Vieja and JD in your list, are South American cichlids which come from an entirely different and less aggressive attitude type place.
Most South American cichlids live in varied communities, that allow for multiple combinations to occur naturally, they seem more tolerant in community situations.
I prefer to keep South American, and Central American cichlids in separate tanks for this, and other reasons (like water chemistry preferences.
Central American waters are often home to only a few species (like my video above) or other waters I've spent time in, and find even in nature, JDs often suffer when in the presence of other more dominant cichlids.
In the 1st video below, JDs dominate the cichlid landscape, are plentiful and other species are either live bearers, or a relatively small population of Rhamdia catfish.
Eden2
But below in a Cenote where another more dominant cichlid is found, (Mayaheros uropthalmus), there are few JDs, and they are a bit torn up.
027 zps4b102ffd 
terd ferguson
, that was active for a long time before i even started here. He kept a large CA cichlid community full of parachromis and others going for years. Idk if hes active or whats going on now, maybe one of the "old heads" knows.
www.monsterfishkeepers.com
