Hi Rocco, glad you made it, like Laaz said you are certainly welcome here, thank you for joining the Citrus Growers Forum. It's great having you as a member. To answer your questions. (1.) Was it to cold outside. = No. Temperatures in the 50's would do no harm to citrus. ( 2.) Was the water I soaked the trees in to cold. = I strongly doubt it, as municipal tap water in most cities is delivered around 45F this time of year, although cool, 45 degrees should not harm citrus roots. 3.) Did I not rinse the CHC enough. = I don't know the answer to this question. Some suppliers sell CHC already pre-rinsed. I purchase my CHC's from the Crystal Company of Saint Louis, MO. and they pre-rinse their product before it is sold. I still rinse them two more times. I have a great web site that tells exactly the proper method of rinsing CHC's. I will locate it and post it here some time tonight, look for it. I guess the answer to this qustions is I don't know but I doubt it. ( 4.) Is the tree doomed? - I think it will be fine. Was the tree already growing in CHC's when you transplanted, or were you transplanting from a soil type of medium into CHC's? Rocco, at first glance it soulds like you damaged the roots system in the act of transplanting. You can transplant at any time of the year, but transplanting sould be done slowly and cautiously, and one should never be in a worry. Tell us more about the actual transplnting. Take care and regards, I hope you will be an active member, and stay around a long time. I'll locate the proper rinse method for CHC's and post it. Another member has already posted the link here a month or so ago, I'll find it. - Millet