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View Full Version : What killed 8 jawfish in less than 10 days?


Reeferhead
10/17/2011, 12:01 PM
On October 8th, I added three yellow headed jawfish to an well established set of five. Both sets came from the same source but spaced several months apart. I did not QT or do any prophylactic treatment on either set. As a species tank, there are corals and inverts but no other fish species in this tank.

The new set of three were dead within the first four days. I was not able to note any symptoms as the new fish were in hiding, I only found their bodies once near death or dead. At the time, I just assumed the stress of transport killed them, as the bag they came in had been puntured during shipping and a fourth fish was found DOA in the bag.

A couple days after the new set died, the established set of five began to show some symtoms. There were no outward signs of disease, no spots or ick like symptoms. There may have been a mild film (Velvet) but it was difficult to tell on the pearly colored body of the Jawfish. From what I could tell symptoms started as mild labored breathing and loss of appetite. By the next 24-48 hours the fish were out of their holes and having difficulty swimming, then found dead 12-24 hours later. I did notice mildly flared out gills and a sucked in lower jaw on one of the fish about 24hrs before I found it dead.

As of last night, I had one fish left alive but it was showing the initial symptoms. Whatever it is it works super fast; what could this be?

Reeferhead
10/17/2011, 12:42 PM
After doing a bit more reading, I suspect its Velvet. I did notice 1-2 of the fish scrape themselves on the sand and its quite possible they showed a mild velvety sheen but its just hard to notice on their pearlescent bodies.

snorvich
10/17/2011, 03:20 PM
Velvet. It kills quickly, ich does not. Leave your tank fallow for 9 weeks before restarting with fish.

Reeferhead
10/18/2011, 08:33 AM
This is my first experience with Velvet. Man, its unforgiving :mad: Found the last jawfish dead last night.

snorvich
10/18/2011, 08:40 AM
This is my first experience with Velvet. Man, its unforgiving :mad: Found the last jawfish dead last night.

Yes, it is insidious. Kills quickly and completely. Unlike ich, where about 10% of fish can become resistant, pretty much all fish will be wiped out. So sorry.

Reeferhead
04/18/2012, 06:54 PM
I let the tank run fallow of fish for over three months as suggested. The collector I purchased my original jawfish from, offered to replace all nine jawfish with shipping included, so I gave them another shot when they started Spring collecting again a few weeks ago. On February 6th I received all nine seemingly healthy jawfish. They all immediately went into hiding and started building burrows, totally normal. However, its been close to two weeks now and I've put eyes on no more that 4 at any one time. I've only witnessed two come out and eat at one time. In the last three days I've found three dead corpses. Since they never really came out of hiding much its been hard to observe symptoms. However, today I was able to capture a few videos of one of the dying fish. It looks like velvet again to me. What do you think?

<iframe width="560" height="315" src="http://www.youtube.com/embed/X6RGm1xm2oU" frameborder="0" allowfullscreen></iframe>

<iframe width="560" height="315" src="http://www.youtube.com/embed/Ve1gPRx4dNE" frameborder="0" allowfullscreen></iframe>

<iframe width="560" height="315" src="http://www.youtube.com/embed/lcoPNGgTi1o" frameborder="0" allowfullscreen></iframe>

Reeferhead
04/18/2012, 07:15 PM
Well, that was quick. :( Same fish less than a hour after taking the videos...

http://farm6.staticflickr.com/5196/7092089957_f3906f545f_z.jpg (http://www.flickr.com/photos/21479988@N04/7092089957/)
Untitled (http://www.flickr.com/photos/21479988@N04/7092089957/) by nickgrant79 (http://www.flickr.com/people/21479988@N04/), on Flickr

Reeferhead
04/19/2012, 04:50 PM
Can anyone provide an opinion or diagnosis based on these videos?

sandwi54
04/19/2012, 05:14 PM
It's hard to tell if it's velvet without any obvious symptoms. However, the heavy, labored breathing coupled with darting behaviors suggest some kind of parasites, likely velvet.

Did these nine jawfish go through QT with prophylactical copper treatment?

Reeferhead
04/20/2012, 10:19 AM
It's hard to tell if it's velvet without any obvious symptoms. However, the heavy, labored breathing coupled with darting behaviors suggest some kind of parasites, likely velvet.

Did these nine jawfish go through QT with prophylactical copper treatment?

No, besides a Springer damsel I added about two months ago to control flatworms, these are the only fish in the tank so I did not QT them. I do typically QT but I don't like using copper prophylactically, particularly with species like these jawfish which are typically not hardy eaters after shipping anyway.