A friend of mine is thinning out his mushroom corals and offered me some, I'm so excited, that will really change the dynmic of my tank, figure its probably a good idea to get them situated before the puffer gets in there. I have read in several places that he won't pester these corals, really only likes the harder ones so we will see. It wont hurt so bad if it doesn't work out as I'm not paying anything for them..but still he has crabs to keep him busy in there so I think it will be ok..any opinons?