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Randy
Junior Member
Username: milesteg

Post Number: 66
Registered: 01-2006
Posted on Thursday, February 16, 2006 - 09:03 am:       

Hi,
I have/had 6 algae eating shrimp ( that is what they were sold as) for a couple of months in a tank that I have set up as a Discus tank. Everything has been fine until a couple of days ago when I noticed that all 6 were huddled in a corner. Now I think 2 have died, it is hard to tell I have thought that some had died in the past but they must have shed, because I all 6 together.
Here are a couple of pictures.
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-01 .JPG
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Discus001 .jpg

Anyone have any ideas on what I could look for to explain this behavior?

Thanks
Randy
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Karin
Moderator
Username: autumn

Post Number: 1641
Registered: 03-2004
Posted on Thursday, February 16, 2006 - 09:34 am:       

They look like Amano shrimp which are very hardy.

What are your current numeric readings (since the shrimp started acting strangely) for:
ammonia
nitrite
nitrate
pH
GH
temperature

What additives do you use in the tank, how much and how often (fertilizer, water conditioner, salt, iron, iodine, medications, etc.)

Any recent changes in your tank?
Possibly, the truest test of one's capacity for compassion, is whether one can love a snail.
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Randy
Junior Member
Username: milesteg

Post Number: 67
Registered: 01-2006
Posted on Thursday, February 16, 2006 - 11:18 am:       

Hi,
ph = 6.4
Ammonia = 0
Nitrite = .05
Kh = 53.7
Gh = 143
Temp - 84.4

The only changes that have been going on are that I have started using RO water made by my RO system rather than from the store. And I have started adding additive for the Discus (Black water or something, I'll get back to you on that).
I will also get a nitrate test kit and retest today.
I did start using a substrate furtilizer in the gravel next to a few plants also.
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Karin
Moderator
Username: autumn

Post Number: 1642
Registered: 03-2004
Posted on Thursday, February 16, 2006 - 11:44 am:       

Is there any chance you're adding anything containing copper? I know the they're supposed to be tolerant of pH as low as 6, but I prefer to keep them closer to 7. I also keep mine in cooler water.

Shrimp in general seem to be fairly sensitive to water parameter changes, so perhaps the black water and/or change in RO water could be affecting them. Since it's happened about the same time as your changes, I suspect it's an environmental change. Whether it's something they'll adapt to or not, I couldn't guess. It's bothersome that two may have already died.

See what you can find out about your additives and compare your recent parameter readings against older ones to see if anything jumps out at you. Wish I could be of more help.
Possibly, the truest test of one's capacity for compassion, is whether one can love a snail.
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Randy
Junior Member
Username: milesteg

Post Number: 68
Registered: 01-2006
Posted on Thursday, February 16, 2006 - 02:55 pm:       

Hi,
I'm not worried any more. The 2 missing shrimp showed up on the pile. It seem that they must have shed and gone off to hide while their Exoskeleton hardend.
I have some pictures from just a few minutes ago.
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-00 2-Feb-16-2006.jpg
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-00 4-Feb-16-2006.jpg
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-00 5-Feb-16-2006.jpg
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-00 6-Feb-16-2006.jpg
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-00 7-Feb-16-2006.jpg
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-00 8-Feb-16-2006.jpg
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-00 9-Feb-16-2006.jpg
http://www.badmanstropicalfish.com/species-gallery/gallery_main.html/photo-gallery/albums/userpics/10148/Shrimp-01 1-Feb-16-2006.jpg

Well okay a few more than a few. They are hard to photograph.
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Karin
Moderator
Username: autumn

Post Number: 1643
Registered: 03-2004
Posted on Thursday, February 16, 2006 - 07:30 pm:       

Whew, what a relief, eh? I'd have to agree that those reall light ones look like they just got done shedding. Great pictures! Glad to hear they are all well. :-)
Possibly, the truest test of one's capacity for compassion, is whether one can love a snail.
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Stephen
New Member
Username: stephen

Post Number: 9
Registered: 02-2006
Posted on Friday, February 17, 2006 - 04:39 pm:       

ya nice shrimp, jw but what type of plant is that they are huddled near and also are the algae eating shrimp or otto in ur tank better for eating algae? I couldnt tell if it was an otto or a siameese algae eater. Really nice pics
"I say hello you say goodbye" The Beatles
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Randy
Junior Member
Username: milesteg

Post Number: 73
Registered: 01-2006
Posted on Friday, February 17, 2006 - 09:10 pm:       

Hi Stephen,
I found this web page:
http://www.shrimpcrabsandcrayfish.co.uk/Shrimp.htm?Caridina.htm~mainFrame
Sci:Caridina sp.
Common:Red Spotted Shrimp
Origin:Asia
Size:3cm
Temp:22-25C
This look like what I have for shrimp.
As for what eats more algae, that would be very hard to quantify. The algae eating shrimp do eat algae and are good cleaners all around. The placo seems to a good job on the glass.

Randy
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Randy
Junior Member
Username: milesteg

Post Number: 74
Registered: 01-2006
Posted on Friday, February 17, 2006 - 09:35 pm:       

Oh yea the plant is Micro Sword ( Lilaeopsis brasiliensis )
http://www.aquahobby.com/garden/e_lilaebras.php

It is growing quite good now.

Randy
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Randy
Regular Member
Username: milesteg

Post Number: 101
Registered: 01-2006
Posted on Sunday, February 26, 2006 - 07:00 am:       

Hi,
I think I know what brought my shrimp out of their normal place. They use to hang out behind this pile of rocks. I recently removed the rocks and found the remains of my plecostomus. He was showing no ill signs prior to his disappearance so I'm thinking he got himself stuck back there.

Oh well.
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