I have a thought....
Dyed.
If it really is as pink as your picture (I have a suspicion that it is more pink than that picture), then I'd say they craftily dyed that sucker.
Take a look at the tentacles up close, and get a photo of them if you can. I think in most RBTA's, they show a streak-ish look in their tentacles (could be wrong). Do they look solid pink? Throw up a picture if you can get a decent one of just the tentacles.
GL, but I think your water column is going to go "barbie"....
Ron