how do you tell if it is dyed?

[fakename]

Did you buy one of those super expensive yellow leathers that are at Big Als right now?? They are beautiful but really do look dyed.......some of the guys who work there were even talking about how they were likely dyed.....
As for that anemone, it looks like a rose tip BTA to me.....I am hoping they tear down that tank too just so I can buy it!!