Just a little update, her shell is now like Fully 100% white, and she stills seems to be Extremely active and healthy, and is still growing Very big Very fast...
I also bought the cuttle bone like you said and put it in, although she never seems to really go near it :/ But i believe it also puts calcium into the water so i don't think it matters (correct me if I'm wrong)...
Anyways, I attached a few pictures i took about 5 mins ago, i really think she did transform into an ivory :S She looks soo bright!!
Let me know what you think!