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Ghost Shrimp Turned White... help!

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I’ve had the ghost shrimp for at least 3 months. About 2 months ago 4 of the 6 turned white. I’ve been waiting for them to die (assuming muscle necrosis), but they haven’t. One of the white ladies actually berried up a couple weeks ago. The white is definitely in the tail muscle, however parts of the carapace have turned white as well in those most affected  AND now I’m seeing black spots develop. 


I’d love to have a better idea of what’s going on with these little guys and see if I can keep them around a while longer. 


Tank info:

10 gallons, weekly water changes 10-30%, well water, heavily planted. 1ml of Flourish added most weeks. 

Ph 7.2

kh between 180-300 (test strip, master kit is on the way)

gh 300

nitrate & nitrite 0

foods used include: bug bites, crab cuisine, baby brine shrimp, tropical flakes, freeze dried blood worms (not all at once... don’t worry...)

tank mates: endlers, mystery snails, ramshorn snails  


*i just changed up the lighting to 6500k bulbs and the algae is having a hay-day. Prior to the bulb change there was not visible algae in this tank


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Wow, they don't even look like ghost shrimps anymore.

Its too late for treatment now. However, it won't hurt to try.

Urak, a member of this forum, shared an Oregano oil treatment (Carvacrol oil). Diluted at 1drop to 4.5ml of water. Then soaked the shrimp food in it and fed to the shrimp. 

Look for oregano oil in your supermarkets.

Take pics along the way for comparison.


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is the oregano treatment fish safe? 

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39 minutes ago, Elizabeth said:

is the oregano treatment fish safe

Safe for fish directly, but I cannot guarantee it is safe for the beneficial bacteria in your tank and filter media.

Afterall, this is supposed to kill the bacteria that is infecting your shrimp.

Sooooo, treat the patient in a hospital tank :happy:

But if you cannot do that, then you need to weigh up the risks.


<edit> - Oregano oil is probably more likely stocked in health food / vitamin shops.

Where are you from? SKF is very international now, I cannot assume everyone is from Aus anymore.

Edited by jayc

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  • Posts

    • jayc
      No problem. Love helping others if I can. Report back in a week or so. You should test TDS every day around the same time, to keep a track of any changes.
    • Zenplay,thailand
    • supermansteve32
      Sounds good Jay. Thanks a lot I appreciate all of you
    • jayc
      It sounds about right for GH6 (6 drops is roughly 120 TDS). Those GH test kits are not the most accurate. And RO water reading of 3 is not unreasonable. I don't know why you would have been reading 240TDS last week and now it's a 100 points lower. I would suggest, not changing water parameter with a water change for a week, then see where it is at. Change if it gets close to 200 (say around 180-190). Let's give the tank some stability by not changing anything for a while.
    • supermansteve32
      I checked my TDS meter and it reads 3 on RO water and today my TDS in my tank is 133. I did a test with API and it took 6 drops so that's around 100 TDS.  I had 2 adolescents die overnight.  Should I only change water when it's over 200 TDS or should i continue with the 10% every week?  Thanks