I dont know anything about Parrot Fish however I did a simple search of the profiles here on mft and came up with this...
: Compatibility: Said to be peacful for a cichlid, but caution must be taken, as these are cichlids and have the potential to become aggressive.
Maximum Size: 4-6 inches
Minimum Tank Size: 40gal
Temperature: 72-82F
Diet: Omnivore
Level of care: Easy
General Notes: The blood parrot cichlid is a man-made hybrid. The exact origins of the fish are unclear but it appears to be a cross between a South American cichlid, likely the severum (Heros severus) and a Central American cichlid, likely the midas cichlid (Amphilophus citrinellum) or the red devil (Amphilophus labiatum).
This fish is a very contriversial one. Being a hybrid it does not get much support from the natural fish crowd. It is not only a hybrid but does have certain deformaties that you usually never see in the species that are said to make it up, nor in most other hybrids, although any hybridization may produce deformaties over time. A lot of cichlid keepers say these look like goldfish rather than cichlids. Others find them quite pleasurable and love to keep them, which is why they continue to be a somewhat popular fish in the aquarium trade.
All "cichlids" are not alike...mbunas like a high ph water, Discus on the other hand (cichlids as well) like very soft water and low ph so you cant judge a fish just by the general term Cichlid.