Dead fish now what?

[jimpster]

I just had 3 fish die on me in the last two days -- first a bengaii cardinal, then my aquacultured clown, and then my new yellow tang.
All had rotting fins. The tang had popeye, and the clown showed symptoms of brook.
I have one fish left - psycho mandarin - which looks and behaves fine. Do I have to worry about him, treat my tank, anything??
I have several invertebrates and corals in there too.
I really have no clue what happened to cause this outbreak
pH 8.2
Ammonia .25
Nitrite 0
Nitrate 15
Since then I've done a ~25% partial change.
I have no quarantine tank

 

[jimpster]

Thanks for the reply. My tank is 30 gal and has been set up for about 3.5 months. I added the tang along with other inverts on Wed. The bengai died on thursday, and the tang and clown died today (friday). I say 0.25 for ammonia because that is what my test kit color is closest to -- ever since I cycled it, the ammonia test color is the same. I have about 20 lbs. live rock.

 

[jimpster]

Does brooklynella effect psycho mandarins? All the other fish died so fast, but this guy looks perfectly fine...
Anyone??

 

[jimpster]

no help?

 

[beth]

Brook is transmitted more via direct contact. Thus, the mandarian, not likely to have had direct contact, just by nature of the bottom dwelling behavior.
I would not add fish for at least a mo. Keep an eye on the mandarian.
Also, get a QT to avoid this from happening again.

 

[jimpster]

I've noticed my mushroom corals being flimsy and star polyps not opening... Could they be sick as well?
Curious question - If brook is spread through direct contact, why do I have to wait for 1 month to add fish?

 

[jimpster]

gee thanks for the help -- great forum...

 

[irenicus]

Do I detect a note of sarcasm?