pearlscale butterflyfish died suddenly black scales

jaydeechuu

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I'm fairly new to taking care of marine life and I recently got my tank stable, no more ammonia. But my fish keep dying. This is a new one that I encountered, I hope someone here has dealt with this or knows what to do since I don't know what to google or what it's called. Thank you!

20230410_175727.jpg 20230410_175744.jpg 20230410_183401.jpg
 

Jay Hemdal

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I'm fairly new to taking care of marine life and I recently got my tank stable, no more ammonia. But my fish keep dying. This is a new one that I encountered, I hope someone here has dealt with this or knows what to do since I don't know what to google or what it's called. Thank you!

20230410_175727.jpg 20230410_175744.jpg 20230410_183401.jpg

Welcome to Reef2Reef!

That is a pretty clear case of Uronema, an internal protozoan. It is not really treatable because it lives inside the fish and by the time you see the lesion at the surface of the fish, the damage has been done inside. Luckily, it only seems to affect certain species of fish and it is not very contagious from fish to fish. Here is an article that I wrote about it:



Jay
 

vetteguy53081

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I'm fairly new to taking care of marine life and I recently got my tank stable, no more ammonia. But my fish keep dying. This is a new one that I encountered, I hope someone here has dealt with this or knows what to do since I don't know what to google or what it's called. Thank you!

20230410_175727.jpg 20230410_175744.jpg 20230410_183401.jpg
This fish can be challenging even to the most experienced hobbyist and often purchased on impulse due to the nice color and patterns bur are susceptible to uronema, lymphocystis and bacterial.
When an opportunity is given, take a water sample to a trusted LFS that does NOT use Api kits and have them test your ammonia and nitrates and compare readings- then you'll know where your levels truly are at. These kits are often notorious for false ammonia readings
 

RickBaine

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Welcome to Reef2Reef!

That is a pretty clear case of Uronema, an internal protozoan. It is not really treatable because it lives inside the fish and by the time you see the lesion at the surface of the fish, the damage has been done inside. Luckily, it only seems to affect certain species of fish and it is not very contagious from fish to fish. Here is an article that I wrote about it:



Jay
 

RickBaine

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Thank you Jay for the information. I too just lost a pearl butterfly. Beautiful fish, was doing great then I noticed a few of the little splotches you mentioned. Still was eating and swimming, was behaving a little different, then just saw it lying on the bottom dead. Guess one of the cost and heartaches of the hobby. Still nice to know what probably happened and that there was really nothing I could have done. Thanks, Rick
 

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