As for the parrots I have no idea cause I have no personal experience with them but I believe they are too slow to be much of a threat to other NW cichlids. If anything, they would be the ones at risk.
They seem to get along with Pearl danios...although mine are very timid then some i see at pet stores..They were harrazed by a native bass in my old tank..They are aggresive but not to aggresive, i would think THhat dwarf groumis or rams would do could or the faster species of fish...
Ive heard talk of these fellows run the whole gammut and I guess that is to be expected of any hybrid. Two seperate endocrine systems blended together might Have some unforseen effect. What I do hear consistantly is that they are cichlids; and like other cichlids they will occasionally eat a small fish here and there. Something to keep in mind.
My older BP is starting to become more territorial and aggressive with age. As with any large cichlid, but he does have a mouth deformity and therefore can do little to no harm
From my experience, if you have blood parrots in with other aggressive fish they will fight to NO end! They are sort of a "Pick on all" type of fish. My older one is very aggressive when it comes to feeding time, especially sinking foods. He spends SO much time running the others away that he misses out on the foodd
IME they should be kept with fast fish that "swim away!...swim away".........
Finding Nemo quote there people.....for all who didn't get it!