You're right. I apologize for being insensitive. I forget what it's like when you first start out and get nervous about everything. I suppose those feelings pass and I shouldnt pass judgement. That said, nutrient changes from one tank to another can have adverse effects. Noting a Alk of 8.4 without no3 or po4 can cause the coral to expel zooxanthellae which would cause stress. Typically a low to ulns should run Alk around 7dkh. So in turn switching tanks can stress the coral out. Like me and others have stated, even if this coral dies, it's skeleton can potentially regrow. I just wouldn't worry too much. Going the simple route of keeping it in a low flow dark area is best suited for this type of situation assuming the rest of your inhabitants are doing well.