Sciaenochromis fryeri varies a bit depending where it is collected in Lake Malawi,check out Cichlid forum in their species gallery they show the different locale variants.Iceberg is the most popular ,i think ,it lacks a lot of the yellow in the anal fin and has a more prominent white blaze on forehead.Too me some variants seem more streamlined than others.
My Electric Blue was bluer at the local fish store,it was dimly lit with black background and filled with many males in about a 29 gallon tank.When i released it in my tank it lost the blueness,i began doubting it's authenticity and sex,it was about 2 ".But by the time he was 2-1/2-3" he started coloring up.It has been 6 monthes and he's about 3-1/2" brilliant with a lot of orangeish yellow in anal fin.He's the king of my 180 community tank