Maingano female?

[Big John]

I have 5 what I believe are maingano I've had them in around 5 months, when I bought them they were around 1 inch long 2 of them have doubled in size the other 3 have hardly grown could this mean that their female?

 

[snowman17]

That could be the case, I bought 3 cichlids not too long ago all fry and one has outgrown the others, so I think it coukd be more of the bigger ones are more dominant or other reasons I don't know.