After a few days of debate by myself and Falcon as to whether my cup coral is dyed or not I have decided to take the debate to the masses. As you can see from the pic below my cup coral is Yellow in colour. A fact that Falcon informed me is not a good sign as it is more than likely dyed. I went on to say that it cant be dyed as I was told that you do infact get Yellow cups but that they are quite rare...looking up on liveaquaria also stated that cups come in yellow. After being shown a thread about another yellow cup on this site, I did some more reading up and found that yes it is common for ppl to dye cups and infact in bright yellow...yikes! However after reading an article by Anthony Calpho on dyed corals I found out that there are infact different species of Turbinaria, mainly the T. reniformis which has widely spaced larger polyps and the T. peltata which has tiny close together polyps. The T.peltata according to Calpho does infact come in yellow. So here are the questions... is this infact a T. peltata and even if it is is it infact naturally coloured or is it dyed? After extensive reading now, I am undecided whether it is or isnt, where as before I was sure it was not dyed.