Bro dryDiver, this is bro xeneryx's FOWLR link..
imho, the Colour of fish depend on a lot of factors..no.1 is the fish itself (handsome pretty is its life)haha..no.2 is the care u give (clean water, good food,etc)temp of water?it can b a great debate ..no.3 is the lighting when u are viewing the fish (some like more blue, some like more white, some like dim dim, etc..)
Cheers & hope to see ur FOWLR setup soon