Hoplarchus Psittacus aka True Parrots. No they are not hybrids and from what I can tell, unable to hybridize. They get fairly large and can be very aggressive so I hope you have the right setup for them.
Yes everybody else in this thread is correct...I hope they weren't kept in that tiny tank for very long...
They are not impossible to acquire here, but not incredibly common eithier. Just a fish you need to look abit around for.