It is difficult for me to weigh in on this with an unbiased opinion, because I see blood parrots as mutant aberrations, that don't belong in tanks with natural cichlids.
So if it were me, I'd move the parrot to its own tank with Legos, burping clams, and/or blue iridescent stuff as substrate, maybe some plastic sunken ships.
I know, not a very popular view here, perhaps even rude, but its because I'm a bit of a purist.
On the other hand, just looking at the fish in the tank now, and potential growth and territoriality , I would not keep a managuense and a tetracanthus in the same tank, because they have such closely related needs, and tendencies that I see them as becoming competitors, and one eventually killing the other in a tank of that size, or even worse IMO (if the were opposite sexes)....hybridizing.
I also see a 110 as really only large enough for a single mananguense, or tetracanthus, not as a community as for adults. And I see a 65 as only a grow out tank for juvies of medium to large cichlids, or large enough for smaller species, or as a sump.