Naso with black spots and blotch

[RaisingKane]

Hi! I have had this blonde Naso for a few weeks and the first issue it had almost immediately was white blotches all over. Eating well and not a ton of aggression from the other tangs in the tank ( Blue & Sailfin). I thought he was getting better it then started to get these black spots on his head and now they are pretty much everywhere. Is this black ich? Bacterial issue still? Suggestions? No other fish in the tank has any issue.

 

[vetteguy53081]

I can imagine a lot and can be as simple as stress spots but will need pics and even video under white light intensity to best assess

 

[RaisingKane]

Sorry about that! I included a photo but I guess it did not go through.

 

[RaisingKane]

Sorry about that! I included a photo but I guess it did not go through.

 

[exnisstech]

Doesn't look like normal stress color that my Naso exhibits some times but I'm no help with diagnosis. Perhaps @Jay Hemdal can help out?

 

[Widdlyscudds]

I had the exact same thing on my Tomini tang when I got him. From my understanding of it it's some type of parasitic flatworm i treated with prazi and it cleared it up. Hopefully one of the more knowledgeable people will show up and can give you a better explanation of possible disease/treatment

 

[Jay Hemdal]

This may be a mixed infection - the black spots can be either digenean trematodes or turbellarian worms. A five minute FW dip will help with the latter. Digeneans have multiple hosts, so will die out on their own.
Trouble is, with the other general symptoms, I can’t rule out other flukes/trematodes or even marine ich.
Do you have a treatment tank?
Jay

 

[RaisingKane]

This may be a mixed infection - the black spots can be either digenean trematodes or turbellarian worms. A five minute FW dip will help with the latter. Digeneans have multiple hosts, so will die out on their own.
Trouble is, with the other general symptoms, I can’t rule out other flukes/trematodes or even marine ich.
Do you have a treatment tank?
Jay

Thanks. I do have a 20 gallon tank I have used for treatment. What would you suggest?

 

[Jay Hemdal]

Thanks. I do have a 20 gallon tank I have used for treatment. What would you suggest?

That may not be large enough. What other fish are in with the naso? They’ve been exposed as well. The treatment tank is also going to need an operating biological filter.

I would give the fish a five minute freshwater dip and then move it directly into the treatment tank (matching sure the water values are the same). At that point, you would start a praziquantel treatment and coppersafe.

I should add that people are having a lot of trouble with nago tangs recently, they just aren’t holding up well at all.

Jay

 

[RaisingKane]

I have a blue tang, a Desjardini Sailfin tang, two clowns, coral beauty and a blenny. All are doing good so far...it's been a few weeks.