Jump to content

whats wrong with this shrimp?


sushant

Recommended Posts

Today i have notice that one of my rilli shrimp with was showing translucent body which looks far from normal. i have lost quite a few shrimps to this disease before and attribute this to planaria infestation(saw a group of them actually attacking an adult shrimp and killing it).

But this time the tank is planaria free and i guess i was wrong at the first place and there must be something else behind this. please have a look at the pictures and suggest me the probable cause and remedies for the same. Thanks in advance.

post-548-0-46449100-1411927924_thumb.jpgpost-548-0-89854000-1411927927_thumb.jpgpost-548-0-64634100-1411927931_thumb.jpg

Edited by sushant
Link to comment
Share on other sites

Sushant,

 

that looks like the condition called Muscular Necrosis. 

It's in the shrimp disease and diagnosis sticky thread.

But what causes it is still undetermined yet. It could be an infection, or it could be caused by poor water conditions.

 

First thing to do is to remove and separate it from the rest of the shrimp. This will ease treatment, and avoid further infecting the other shrimps. Put it into a separate container, with some tank water, then slowly drip in clean (conditioned) water over the next few hours.

Would be even better if you can get your hands on RO water or Distilled water. 

 

Add some blackwater extract if you have any. And a couple of IAL leaves.

Add some blackwater extract to the main tank as well. It won't hurt.

 

While that is up and running, test your water and report back with your water parameters.

Edited by jayc
Link to comment
Share on other sites

Sushant,

 

I should have stressed the urgency more.

 

You need to act FAST!

 

That shrimp is already very advanced in it's illness.

It might already be too late. But you can try separating it and giving it clean water with the correct parameters for a Rilli/Cherry.

Link to comment
Share on other sites

I found one of my cherries like this a few weeks ago but couldn't find anything out about it until I read this post.. Have since removed the shrimp with the same symptoms :(

Here's a study of the Illness,

https://www.google.com/url?q=http://www.abpv.vet.br/upload/documentos/DOWNLOAD-FULL-ARTICLE-7-20881_2012_3_30_15_3.pdf&sa=U&ei=BvksVOuQHsvdaMXugNAO&ved=0CA0QFjAB&usg=AFQjCNG7c91tKFZvPSsKXqaKHbUc8DPJLg

It's a pdf.

  • Like 1
Link to comment
Share on other sites

Thanks for the link to the article. 

I read it.

 

It's essentially an article to prove that muscle necrosis could be consistently reproduced and, confirming that the disease has an infectious etiology.

They succeeded in this trial. Which means they could reproduce the disease, and confirm it is infectious.

 

There is nothing in this paper to suggest there is a cure.

 

The paper however, does mention that there is a non-inflammatory and an inflammatory versions of Muscular Necrosis.

The non-inflammatory condition possibly caused by environmental changes such as sudden changes in temperature, salinity or dissolved oxygen.

The inflammatory condition being caused by a pathogen (bacterial or viral).

 

Although they did not see any casualties in their short 4-5 week study, this is quite different in the shrimp farms where casualties are seen. And certainly different to the dwarf shrimps we keep. Being smaller then commercially farmed shrimps, the dwarf shrimps will see casualties in a shorter timespan.

 

Unfortunately, this article adds nothing to what we already know.

There is no cure yet. When the issue is visible, it is already usually too advanced for a full recovery. Not impossible, but certainly difficult.

Isolate the infected shrimp, and correct any environmental issues like temperature, water parameters, and oxygen levels - this still remains as the only possible action.

  • Like 1
Link to comment
Share on other sites

ps.

 

Even if your shrimps are healthy, it pays to read the Shrimp Disease and Diagnosis sticky. 

So you recognise issues if and when they do arise.

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Join Our Community!

    Register today, ask questions and share your shrimp and fish tank experiences with us!

  • Must Read SKF Articles

  • Posts

    • beanbag
      Update to say that after a few gravel vacs, front wall scrub, moss / floating plant trim, that the condition seems to have improved.  My current theory is that it is due to waste / debris management, where "stuff" like that brown mulm accumulates in the substrate and behind the HMF filters.  Maybe some tanks can somehow deal with it, but mine can't.  Also another experienced shrimper suggested that maybe those "shell bugs" don't just live on the shrimps but also in this debris.  Maybe this is the reason some tanks fail due to "old tank syndrome" where all they need is a good gravel vac? Also, I am guessing that plant trim helps too because now more of the nutrients and light go into growing algae instead of more plants? Well anyway for this tank I will try weekly water change and monthly gravel vac / plant trim.  For my next tank, I'm thinking of something like an under-gravel system where this mulm can fall down and I vac it out.
    • sdlTBfanUK
      Good to have an update and good to hear you are getting shrimplets, so hopefully your colony will continue and you may not get to the point where you have to cull some to stop over population. These type of shrimp only live 12 - 18 months so the adult deaths may be natural? If you have the time I would do weekly 25% water changes, adding the new water via a drip system and do some vacuuming clean of the substrate each week, even if only a different bit each week! See if that helps in a few months and if it does then stick with that regime? It should help reduce any build-ups that may be occuring!
    • beanbag
      Hello again, much belated update: The tank still has "cycles" of 1-2 month "good streaks" where everybody seems to be doing well, and then a bad streak where the short antenna problem shows up again, and a shrimp dies once every few days.  I am not sure what causes things to go bad, but usually over the course of a few days I will start to see more shrimp quietly standing on the HMF filter, and so I know something is wrong.  Since I am not "doing anything" besides the regular 1-2 week water changes, I just assume that something bad is building up.  Here's a list of things that I've tried that are supposed to be "can't hurt" but didn't prevent the problem either: Dose every other day with Shrimp Fit (very small dose, and the shrimp seem to like it) Sotching Oxydator Seachem Purigen to keep the nitrates lower Keeping the pH below 5.5 with peat Things that I don't do often, so could possibly "reset" the tank back to a good streak, are gravel vac and plant trim, so maybe time to try those again. One other problem I used to have was that sometimes a shrimp would suddenly stop eating with a full or partially full digestive tract that doesn't clear out, and then the shrimp will die within a few days.  I suspected it was one of the foods in my rotation - Shrimp Nature Infection, which contains a bunch of herbal plant things.  I've had this in my food rotation for a few years now and generally didn't seem to cause problems, but I removed it from the rotation anyway.  I don't have a lot of adult Golden Bees at this point so I can't really tell if it worked or not. Overall the tank is not too bad - during the good streaks occasionally a shrimp will get berried and hatch babies with a 33-50% survival rate.  So while there are fewer adults now, there are also a bunch of babies roaming around.  I guess this tank will stagger on, but I really do need to take the time to start up a new tank.  (or figure out the problem)
    • jayc
      If that is the offspring, then the parents are unlikely to be PRL. I tend to agree with you. There are very few PRLs in Australia. And any that claim to be needs to show proof. PRL genes have to start as PRL. CRS that breed true after x generations doesn't turn it into a PRL. Neither can a Taiwan bee shrimp turn into a PRL despite how ever many generations. I've never seen a PRL with that sort of red colour. I have on Red Wines and Red Shadows - Taiwan bee shrimps. So somewhere down the line one of your shrimp might have been mixed with Taiwan bees and is no longer PRL. It just tanks one shrimp to mess up the genes of a whole colony. 
    • sdlTBfanUK
      Sorry, missed this one somehow! The PRL look fantastic and the odd ones look part PRL and part Red wine/Red shadow in the colour. They are still very beautiful but ideally should be seperated to help keep the PRL clean if you can do that.  Nice clear photos!
×
×
  • Create New...