Paretroplus Nourisatti Advice

[duanes]

Converent evolution

Above left Paretroplus nourisatti (Madagascar), right Wajpamheros nourisatti (Mexico)
Below Cribroheros rostratum (Nicaragua, Costa Rica)


Above and below Darienheros calobrensus (Panama)

and below (not my pic) but one I have kept, in my rift lake African days, Fossorochromis rostratus, a sand sifter from Lake Malawi

 

[Brazzen1]

They do look a lot alike, except for the color. Does the paretroplus always stay that color?