Fish vs. coral

I have a pagoda cup coral. We had to move some liverock this morning and. I didn't want to hurt the coral, so I moved it slightly. After putting the rock back, I noticed the coral had a bunch of slime coming off of it. I got as much as I could out of the tank.

The next thing I see is my 6 line wrasse up at the top with some slime on his one fin and side. I carefully removed the slime from him and he was able to swim, but he is now dying.

He is new to the tank yesterday, and was doing okay earlier today. Was it the slime that got him, or would it be something else?
Parameters are ok, and I did a water change and got as much slime out as I could by syphoning before I noticed he had some on him. Parameters all look okay:

0 ammonia
0 trites
0 trates
1.23 salinity
80 temp
400 calcium
350 alk

 

Wait... your alk is only 350???

 

It is 3.5 meq/l

 

Yes, it did have white in it. I don't believe he is just trying to go to sleep though. He is having a hard time swimming and is hiding behind the algae right now and isn't moving at all. I don't know whether to euthanize him or just leave him be.
The only thing in there is a clown fish, which was actually afraid of the wrasse

 

Well, looks like the wrasse is dead. I still don't understand what happened. We acclimated him for 1.5 hours by drip and checked everything before putting him in. We also checked everything again tonight before he started acting funny. Nothing could have contaminated the tank other then the cup coral slime.

 

I feel that acclimating a fish for that long, at least a relatively hardy fish such as the six line, is a very long time and may have caused undue stress.

 

So you think we acclimated him too long? That is the first time I have heard of being able to overacclimate a fish. So, if we decide to replace this fish, we shouldn't acclimate it that way? Should I just float the bag and add a 1/2 cup of water 3 times at 10 minute intervals? That is how I acclimate the freshwater. I would like to get another of these, as they are very beautiful, but not sure if I should. The clown is doing fine in there, but I don't want him an "only child".

 

Honestly, I don't acclimate my fish more than 30 to 45 minutes tops. I float the bag for ten minutes, then add aquarium water every five or ten minutes. I haven't lost a fish yet (secondary to acclimation). My belief is the less time spent in the bag the better. If your parameters are good, then the likelihood of survival is quite high. IMHO.