Help Lost two fish already

[Malice Bulldog]

Hello guys,

see attached photos of my sailfin tang. What do you guys think this is? I lost my Blue spot Jawfish earlier today and yesterday I lost my Kole Tang. I currently have all fish out of tank and in QT just don't know what to treat with as I'm still trying to figure out whats wrong. All tank param's are normal. Any help is great. Thanks again.

Update: Just found an anthia (attached photo cleanup crew was eating him)

 

[plc001]

Sorry for Image result for sorry for your loss. to better help you, they will need more info.
How old is the tank? Size? Other animals? All tank param's are normal, what its normal?...

 

[Malice Bulldog]

- Tank is 4 years old..120 gallon Display with 40 gallon sump mixed reef (Picture is sailfin in QT tank)
- Other livestock : 2x Black Storm Clownfish, Sailfin Tang, Kole Tang, Blue Spot Jawfish, 2 Anthia's, Red Star Fish, Coral Banded Shrimp, Cleaner Shrimp
-Current Tank Parameters
Temp - 77.8
PH - 8.1
Alk - 10
Amm - 0
Nitrite - 0
Nitrate - 8
Cal - 420

 

[NinjaTiLL]

Maybe black spot disease? I have no experience but here's an article: https://www.thesprucepets.com/black...t=The black spots on the,the skin of the fish.

 

[Hincapiej4]

Hmm. I used to have a sailfin. Judging by how it looks, seems like ich or velvet to me.

 

[Malice Bulldog]

Yea I thought the same thing at first..but none of the other fish show those signs. The sailfin tang is about 5in. So the black spots/discoloration are a lot bigger than grain salt size. Might be wrong though?

 

[Malice Bulldog]

Hmm. I used to have a sailfin. Judging by how it looks, seems like ich or velvet to me.

Thought this also..but I don't see any white specs on his body like that or the other fish.

 

[Dr Jimmy]

Any changes or additions in the last couple months?

 

[Malice Bulldog]

Any changes or additions in the last couple months?

The Red Star was the last addition about 2.5 months ago. But was QT for 35 days prior with some Nass Snails.

 

[Hincapiej4]

Thought this also..but I don't see any white specs on his body like that or the other fish.

They don't have to be white, could be scabs from when they fell off. Or can also just be discolored. every fish is a lil different in how they react.

 

[Malice Bulldog]

They don't have to be white, could be scabs from when they fell off. Or can also just be discolored. every fish is a lil different in how they react.

Thanks..velvet does makes sense with the major fish loss so fast. I’ll get working on fresh dip than the other steps.

 

[Jay Hemdal Verified Community Expert]

Sorry for your losses-

I would consider giving the sailfin tang a 5 minute FW dip, and then examine the bottom of the dip container for dead flukes (you may need a magnifying glass).

Jay