The most important thing about CoralRx is :
"This product does not contain an ingredient(s), above the safe harbor limits, which are
known to the state of California to cause cancer, birth defects, or other reproductive harm."
It is a plant derivative, which might be irritant and cause some negative effects if improperly dosed.
Also some do not recommend dipping corals immediately after purchase and before they acclimate as it can be an additional insult to them.
I have a feeling though that unless you grossly overdosed dip, your coral will recover.
Good luck.