Breeding groups or all male? If breeding groups I would only do one peacock species, with 1 male and 4 females, same for the labs. Then find a different species for the 3rd, more than one peacock species will cross breed.
If going all male, you only want one of each with no look alikes. 12-15 fish total.
If going all male, you only want one of each with no look alikes. 12-15 fish total.