Big tank problems

[jimbow]

So I added what i intended to be my last fish to my tank a couple of weeks ago. It was a lion fish (and I didn't quarantine it).

It quit eating and died within a week. While I was out of town everything started dieing. I lost 7 fish in all.
(1) lion Fish
(2) clowns
(1) Pajama Cardinal
(1) Bi-color Wrasse
(1) Dwarf Angel
(1) Kole Tang

A couple just disappeared. The others hung on a couple of days. The only thing I saw when I got home was that 2 fish got a white covering over the eyes and their colors looked dull. The dullness might have been an overall coating but I really couldn't tell.

I also lost one annemanie (my other one looks fine). The only fish that seemed to have survived are (2) blue dartfish and a snowflake eel. They seem to be happy and eating well.

Anyone have any thoughts what might have happened?

 

[pacificdiver]

So I added what i intended to be my last fish to my tank a couple of weeks ago. It was a lion fish (and I didn't quarantine it).

It quit eating and died within a week. While I was out of town everything started dieing. I lost 7 fish in all.
(1) lion Fish
(2) clowns
(1) Pajama Cardinal
(1) Bi-color Wrasse
(1) Dwarf Angel
(1) Kole Tang

A couple just disappeared. The others hung on a couple of days. The only thing I saw when I got home was that 2 fish got a white covering over the eyes and their colors looked dull. The dullness might have been an overall coating but I really couldn't tell.

I also lost one annemanie (my other one looks fine). The only fish that seemed to have survived are (2) blue dartfish and a snowflake eel. They seem to be happy and eating well.

Anyone have any thoughts what might have happened?

Sounds somewhat like velvet to me, but I'm far form a guru of any sort. You'd probably have to post some more details and/or photos, in order to get a definitive diagnosis.

I had the same experience last year, except the mistake I made was putting a non-quarantined ball of chaeto (which I was told came from a fish-free culture tank....it didn't). 100% loss over a very short time. I now quarantine practically everything that touches my tank water, no matter what I'm told about how "clean" it is.

 

[jimbow]

I didn't get any photos I was away for work for most of it. I kinda thought velvet I am wondering how the eel and dart fish made it.

 

[Pericyte]

I didn't get any photos I was away for work for most of it. I kinda thought velvet I am wondering how the eel and dart fish made it.

Sorry for your loss, that's rough.

First tank I owned I did not use a quarantine. I lost everyone to velvet disease except a yellow tang (which I still have 4 years later), I assume some fish are more resilient than others.

Now I quarantine everything. I proactively treated with prazi pro and cupramine (assuming it is not a fish that has problems with copper). If you wanted to do this going forward, the biggest problem would trying to treat the eel and dart fish, and letting your display tank be fish free for ~60 days. That should eliminate all ich as well, otherwise you might see an outbreak of something again if anything, or anyone stresses your system.