Fish Id And Some Sexing, Plz Help

[5teve-0]

i have had what i beleive is a parrot fish untill today when the thing bit me and drew blood, it has also swallowed 2 newly introduced albino glowlights, and just gone plain mental, every other parrot fish i have ever seen has been placid apart from this one (i assume) which may i add can open and close its mouth, can i get a second opinion plz

also i got 4 cacatuoide's today and i am having probs sexing them

any help here would be great.

 

[Colin_T]

the parrot isn't a true parrot cichlid, it looks like one of the hybrids.

the Apistogrammas
1st pic looks like a young male
2nd pic bit hard to tell from the pic, possibly female
3rd pic possibly male but hard to tell coz can't see tail properly
4th pic male & a kribensis
5th pic looks like a couple of females
are they double red cacatuoides?

the edge of the male's tail is flat and should have little filaments coming off it. They also develop pointed dorsal and anal fins. The female has a rounded tail and more rounded fins with less colour. Good quality double red & red flame varieties will have good colour in male & female's fins. females will also have a nice yellow body like in the bottom pic. The males go darker.