So I just ordered the Thames and Kosmos Chem 3000 for ds8 for Christmas (am I on the ball or what? LOL). I have a question for anyone who has already used it. I read somwhere that there are certain chemicals that are needed but not included - anyone know what is missing, so I can track them down and get them too ? I'd hate for me - oops - my son - to not be able to play straight out of the box wink