Do Mature Sarasa Comet Goldfish Loose Their Red Pigmentation?

[fishoholic]

Most of the attractive sarasa comet goldfish I've seen are younger adults. Do all (or most) mature sarasa comets loose their red colouring?

 

[EllieJellyEllie]

As fish grow older they loose their brighter colors so I would say yes mostly but im not 100% sure.

 

[BerryAttack]

usually they do. depends on how hey are bred and what the environment and food is given to them is like.

 

[fishoholic]

Thanks for your input. What is the recommended food and environment to make the red colouration last?