please help! fish dieing

[cameltowing]

ok story time need asap advise.. 400 gallons,,,, sump fuge more rock than I can count... established 6 months.. been doing saltwater for 12 plus years and ive never been thru this... teusday 1 hippo tang and 1 sailfin and my porkypine puffer showing a little signs ok ick.. I have 25 plus fish and 30 plus corals.. get home Thursday night aftyer the holidays and puffys eyes are all glazed over white and wont eat.. so I start a hospital tank.. 30 gallon I used 20 gallons of my display water and 10 gallons of new salt water.. peramiters are 0 across the board in both tanks... medicate the hospital tank with api general cure.. this morning puffys dead, he turned all red and eyes like exploded.. hes our homie sad day.. but heres the weird part.. Friday morning my orange sholder and yellow eye kole tang( both which looked and acted perfectly healthy) dead yesterday my red fin tang dead.. in the display... im running out of tangs here why all the sudden death why only tangs??? and why no signs of coral fatigue.. I have sps birdsnest looks killer and xenia which is usually tell all on water conditions.. they are great please help..

 

[cameltowing]

I since today put hippo and sailtang in the hospital tank with a waterchange.. plan to hypo that tank slowly.... have 40 gallons mixing right now to do water change on the display.... is there some kinda illness that kills only tangs and as quickly as over night?

I still have a yellow and scopas and blonde naso and a mimic left in the display.. all look great right now

 

[flower]

Quote:
Originally Posted by cameltowing http:///t/396743/please-help-fish-dieing#post_3534882
I since today put hippo and sailtang in the hospital tank with a waterchange.. plan to hypo that tank slowly.... have 40 gallons mixing right now to do water change on the display.... is there some kinda illness that kills only tangs and as quickly as over night?

I still have a yellow and scopas and blonde naso and a mimic left in the display.. all look great right now

Hi,

How awful to have this happen. I'm so sorry for your loss, I hurts to lose a favorite fish.

Sadly, it won't do one bit of good to do hypo on only two of your fish...if they got ich in the display, then the entire display tank is now infested with the parasite. While hypo is the cure for the fish...once you return them back to the display they will break out again and the whole cycle starts anew. By sheer numbers they will kill the healthy fish, the ones in the hospital tank are stressed (tangs are the easiest stressed, that's why they are called ich magnets), and any fish are susceptible to ich the most when stressed, the more mellow fish are able to fight off the parasite, but a new outbreak may change that in a heart beat.

Using the water from the display means the ich was transferred right into the hospital tank, there is very little good bacteria in the water to warrant using it.

To be rid of the parasite, your tank must go without fish for 8 weeks. The inverts and corals are fine, and don't fall prey to ich. However the so called "reef safe" cures for ich, will stress and kill inverts and coral, and still it won't kill all of the parasite stages, so the tank would still be infested.

If your new corals were in a system with fish that had the parasite, then the new corals carried the parasite with them in the water they arrived in, and was added to your tank that way. making all efforts to quarantine all new fish, in vain. That's why many folks with nice reefs quarantine EVERYTHING even inverts and corals. The big tanks have equally large fish and numbers of fish, making it necessary to have a hospital tank large enough to handle so much ... One stressed fish and the ich got a foot hold.

One solution could be to remove your rock to tubs, inverts and corals to the 30g and keep the fish in the display to do hypo.