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Here is a link to another person having issue with ick.  A lot of good reads here on ick as well.  http://utahreefs.com/forum/forum_posts.asp?TID=48790

 

Brook kills the fish by impairing the fish's osmoregulatory system and through secondary infections.  Formalin (formaldehyde) series dips/baths are the only treatments I know of for it.  Getting the fish into a hyposaline condition (QT tank running low salinity) will decrease the amount the fish has to work to maintain osmotic balance...thus giving you a little bit more time to treat the fish for the actual parasite.  You'll need to run a broad spectrum antibiotic as well as secondary infections are common as the parasite falls off.   

 

Hyposalinity if done correctly will also treat ich, so you'd be killing two birds with one stone.

 

If the wrasse is not exhibiting signs of infection, treatment will still be beneficial.

 

And...just a warning...formalin is nasty stuff.  Be careful, and realize the fish may not be able to even handle the treatment. 

 

"Starting over" won't help either.  That's like saying you'll move to a new house b/c your dog brought fleas in.  Animals will bring parasites in...they have to be treated.  It's just a gamble how often & how severe the infestations will be.  You may go years with no problems...or keep battling infections every couple months.  I prefer to treat and never deal with it again.

 

I don't think most mistakes made in the hobby are worth starting over entirely.  A few simple changes here and there can make a world of a difference.  Especially for something as simple as a fish parasite.  Remove the fish...treat...leave main tank fallow...reintroduce fish.  No point in disturbing an established tank (probably filled with corals).

 

Yup...killing fish happens...and I think we should take it more seriously (and I'm definitely at fault too).  We are importing so many fish, and compared to the freshwater hobby, we are able to reproduce fish in captivity at a mere fraction.  We have all sorts of environmental groups pointing fingers at the hobby, and compared to other countries import restrictions, we're currently very lucky.  We teach newbies that it's ok to lose some fish as long as their wallets can afford it.  Not cool!  We need to be more responsible with what we're very lucky to have.  We need to educate ourselves better on fish/coral treatments to decrease the death rate, and we need to increase the captive reproduction rates.     

 

Eh, just my $0.02, for whatever it's worth.