duncan question

[sansouci01]

I've been using red sea coral pro salt for about a year with great results but, due to budgeting issues, I was forced to go back to reef crystals about a month ago. The salt change didn't seem to affect anything but my ducan has been closed up ever since. I know coral pro has higher concentrations of certain elements but would it affect my duncan and not bother any other corals?

 

[Sniperhank]

Duncan’s close up from time to time. Very hardy. I’ve never used the same salt mix, always whatever is on sale. No issues with my Duncan.