Originally Posted by brookeandbubba
can fish change collors if the watter changes
Yes, they can change color if the water changes. Usually they pale out though, but in excellent water quality they will look extra vibrant.
How dramatic is the color change? Often young fish we buy at the store are still developing their color. You may get pure white fish, or half blue half white fish that may turn out all solid or marble by the end of a year.
See how this fish has much more blue in it's tail in the above photo were the fish is older. The body color didn't change, it is just the lighting that makes it look more blue/green.