This will depend on the type of lighting you use, whether there is any sunlight shining on their tank (or pond), and the type of foods.
If your fish are primarily in a location that does not get direct sunlight, and your tank lighting is low, fish tend to be less colourful regardless of what you feed them.
Goldfish see in color.
Different types of goldfish food typically don't affect the colour of goldfish, however there are some specific goldfish foods that may enhance the color of goldfish- but do not change its overall color.
No they are not.
goldfish are not always one color because they have different species. Also, goldfish can change colors over time. They won't always be gold or maybe they won't always be white or whatever color your goldfish is.
Vibrant neon pink.
Grey is the natural colour of the carp the goldfish was developed from.
Goldfish can lose their orange color due to light deficiency or dietary deficiencies. In these cases, the color change is often reversible.
Goldfish.
yes
vibrantPart of Speech: adjectiveDefinition: full of energy and enthusiasm : a vibrant person.- quivering; pulsating : Susan was vibrant with anger.- (of color) bright and striking : the vibrant pattern.- (of sound) strong or resonating : a vibrant male voice.
Yes. Although the darker your skin is, the less vibrant the color will be.
no