Got to consider tank size here. Typically males only show the coloring you are familiar with, but the tank size could cause aggression between a group of males to be so large, that no one male will show color, or you could have all females too, hard to say without knowing the tank size, and if you know what genders you have as well.
You might also want to consider, how well do you know the seller too. If you really don't know this seller very well, there is a chance your stock could be hybrids.
4 Flavus ONLY in the 60 gallon tank?