I always have something to throw in even if it's not relevant
@saltyfilmfolks advised some proper steps. Go with what you've been advised already.
Here's a break down for you, since I like typing, talking and sharing from time to time ;Shamefullyembarrased
1)
Correct Salinity (slowly would be most appreciated by the coral(s))
- Slowly (gently for the corals) would be safest. The goal is to avoid shocking and stressing the coral, which has the potential to damage this coral or others more than it/others already are. Raise it 1-2 points until reaching desired salinity, per 24 hours. Can you raise it quicker, sure, but slow is best.
2)
Treat Agitation Turned Wound
- Make sure you use something relevant to this situation, not just using any ol' thing you have on the shelf. @WrongGenotype suggested two products that if you don't have them on hand, you should. @Bulk Reef Supply carries both of these products.
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http://www.bulkreefsupply.com/8-oz-...MIwqiVjKj11AIVnEwNCh2egAR8EAQYASABEgJBzfD_BwE
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http://www.bulkreefsupply.com/two-little-fishies-revive-coral-cleaner.html
3)
System Check - Update Records
- Do you journal? If you don't keep a journal/history of your system, now would be a good time to start one.
4)
Salinity Testing Capability
-If you don't have a proper (not those plastic cheap ones) refractometer then add that to your necessary collection of tools as well. You need to be able to check this at any given moment, especially when you have a crisis on your hands. Don't rely on your Local Fish Store that is probably miles away to handle this ability and information for you. Be wise, handle it yourself.
5) Relax & Enjoy
- Sometime we can over react and do more damage than if we would have allowed the problem to fix itself. Do work, sit back, relax and enjoy.