Thanks, actually the long tentacle anemone I've had for about six months now he used to be brown in the old tank (you can see him on the left of the picture) but decided to turn this awesome blue color on his own, which I hope he stays that way. The bubble tip was very small when I got him about 3 months ago and has grown huge, neither anemone is dyed. The sand stays clean by only using RO water keeping the filter clean and having a diamond goby.