hystrix question?

[hawaiian aros]

has anyone everseen a hystrix that had a blueish tone marking
as it ages will it lose this blue color
and how much should these guys be going for?about 5 inches

 

[furcifer158]

never seen one like this before do you have a picture?

 

[Nic]

it will loose the blue.... blue usually means its real thin.... price depends on your location... aquascape has them about that size for 100$