Desperate Help Needed

[Fun $ Pit]

Ok - I am at a total loss. I don't know if it's ich doing this or other infestation, but one by one all of my fish are dying off.

They seem to be doing fine then within a matter of hours their skin starts to fade, turn grey/whitish, have trouble swimming (lay on side) and then die.

(This all started when I was on vacation and I had a stand in caretaker)

Did the water get poisened somehow or what? I see no other signs of disease other than mild ich.

I have quarantined my two remaining fish with a 100% fresh saltwater and aerating.... don't know what else to do other than watch the worse.

[stingythingy45]

There's no such thing as"mild Ich".
Do a search for Hyposalinity.

[norwall]

I would check ammonia and nitrite as well. Could be the caretaker fed too much?

[Fun $ Pit]

All water params have been checked and are excellent. Feeding two much was not an issue either. Daily frozen and seaweed rations were cut down while I was away.

[norwall]

Hmmm. I have had some fish that fight off low level ich infections on a regular basis (like my Chevron Tang) others that faded quickly (other tangs). Sounds like you're doing the right thing by moving them to quarantine. Do they have the white spots all over them?

[Fun $ Pit]

Yes. My sailfin has had an on and off bout with ich for some time. It would seemingly disappear so I was not sure it was a problem. My clowns then came down with it, but my bicolor blenny showed now signs of ich and was the first to die.

My sailfin has not dots on it right now, but is gasping for air at the top of the tank. Probably not much I can do for him at this point. I tried a freshwater dip as well - no change. Quarantine tank had an 80% water change today with fresh RO/DI salt water at 1.026 salinty. Temp is at a steady 78 degrees.

[norwall]

Ahhh. The mention of your clowns passing first makes me think you should investigate Brooklynella, sometimes called clownfish disease. It's very contagious to all fish.