Jump to content
beanbag

Crooked antennae means what?

Recommended Posts

beanbag

Hello folks,

So a week ago I got 2 blue bolts and 2 red wine shrimp from a local breeder.  This time, their water was not much different than mine, so I only did 3 hrs acclimation.  All of the shrimp have been doing well for a week now, except one guy who became inert a day ago (the 6th day).  While the other shrimp are eating, this guy just stands there frozen.  Then I noticed that it's main antennae are a little bit crooked (not badly mangled, but a few bends here and there) and also one of them is shorter than the other.  I can't be sure, but I think they were straight a few days ago.  I got worried that it was bacterial infection, since that can affect the appendages, but it's not pink at all.  Also, this shrimp is more like 95% inactive.  It went on a 10 minute grazing tour an hour ago, but is now frozen up again.

 

Water parameter info:

from seller: GH 3 KH <1 TDS 115

me: GH 6 initially, now lowered to 5, KH 0 TDS 160 initially, now lowered to 140, pH 6.6

Amm, NO2, NO3: 0,0,6

Share this post


Link to post
Share on other sites
jayc
11 hours ago, beanbag said:

Then I noticed that it's main antennae are a little bit crooked (not badly mangled, but a few bends here and there) and also one of them is shorter than the other.  I can't be sure, but I think they were straight a few days ago.

This kind of injury can happen during a moult. Did you notice it moult? And if it moulted recently, it would be tired and in a recovery state for a couple of days.

Feed it a frozen bloodworm and keep an eye on it for the next few days. 

Keep lowering GH and TDS for the next water change. They might be used to very soft water.

  • Like 1

Share this post


Link to post
Share on other sites
beanbag

I first noticed the crooked antennae and lethargy last Friday, but didn't see any molt shells.  Then I saw 2-3 molt shells on Saturday.  (Maybe I missed this guy's molt)  Anyway, since posting this, the activity on this guy has been slowly increasing. I gave it some Shrimp King Protein.   It tends to alternate between grazing and freezing.  My other Taiwan bee shrimp are mostly active and didn't miss a beat during their molting. 

Share this post


Link to post
Share on other sites
sdlTBfanUK
14 hours ago, beanbag said:

I first noticed the crooked antennae and lethargy last Friday, but didn't see any molt shells.  Then I saw 2-3 molt shells on Saturday.  (Maybe I missed this guy's molt)  Anyway, since posting this, the activity on this guy has been slowly increasing. I gave it some Shrimp King Protein.   It tends to alternate between grazing and freezing.  My other Taiwan bee shrimp are mostly active and didn't miss a beat during their molting. 

Good to hear that the shrimp is still alive, long may it continue! I have never seen an actual molt so assume they do it somewhere out of site or at night usually?

Simon

Share this post


Link to post
Share on other sites
beanbag

Update:  so that shrimp survived and is more or less doing ok, however, its growth is stunted.  I don't think it got any bigger at all in the 3 weeks I've had it (still 3/8-1/2") while its siblings have molted 3 times and are nearly twice the length (3/4-1")

bluebolts.jpg

Share this post


Link to post
Share on other sites
jayc

It might be a good idea to separate it and avoid it breeding, just in case it is a genetic problem.

  • Like 1

Share this post


Link to post
Share on other sites
beanbag

I just noticed that one of my red wine pandas also has the crooked antennae, although it's not so much crooked, as really soft at the ends and flops around.  None of my other shrimp (some Taiwan bee, neos, and amanos) have this problem.  Would it help if I bumped up the GH a little bit (currently at 5) or fed them more food with calcium.  (Their main food is algae + biofilm + indian almond leaf, plus every 2-3 days I throw in some random food like jayc's agar recipe, oats, barley, soy husk, Shrimp King Protein / Mineral / complete, etc)

Share this post


Link to post
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



  • Must Read SKF Articles

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

    Join Our Community!

  • Posts

    • Steensj2004
      How low does this substrate buffer, inknownit isn’t an exact science, but has anyone had experience? The PH has parked at 6.4-6.5. 
    • jayc
      Hah! LOL, how did I know. If I was going to put a bet on one or the other, it would be the rocks from Phillip Island ... from the beach. How to test? do the vinegar test. Take out a bit of gravel, and a small stone. drop some vinegar on them to see if you get a reaction. Alternate test is to put them in a cup of water. Test the water GH and KH before adding, then test again after a few hours to see if KH and GH have increased.
    • Crabclaw
      ahh shoot. gravel was washed about 20 times thru, and rocks were boiled. gravel was sold as aquarium safe gravel, but the rocks were from phillip island, along the beach... how could i just test 1 or 2 to see if that's why? (they're all the same type, but i have a few big ones that r heavy and a bunch of small ones that i can test with)
    • jayc
      That means you have something else in the tank that is leeching carbonates - like a rock, or gravel or shell grit.
    • Crabclaw
      eek! I've been trying to reduce the hardness for a few weeks since i noticed it was high. I'm in melb, and my tap water is relatively soft, but it doesn't seem to make a difference to the hardness when i do water changes. I've been doing up to 40% weekly (on average maybe 30%) but have barely seen improvement... I'm using water that's already at about 23 degrees from tap, would it make a difference if I used just cold? (I've only measured cold tap, not heated as i didn't think it would be different). Otherwise if I could get RO from somewhere would that help? Thanks!
×