Wasn't there a thread about this a year or so ago, didn't the Sprung book recommend a reduced photoperiod. IE no light for 48 hrs and then minimal light for the next week gradually increasing?
I know they recommend dropping a snail on it to find out if it's Dino's, the dino's sting the snail and it dies pretty much instantly but I don't see how that's thought of being reef friendly.
http://www.algone.com/dinoflagellates.htm
http://www.aquariumadvice.com/showqu...q=2&fldAuto=14
http://www.reefs.org/library/article/t_crail.html
Doug