nathangoudie nathangoudie
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  • Posted on: 28/11/2012 5:06
Shrimp keepers be careful with this snail #1
This snail attack shrimp when they molt!

I watched it kill one of my cherry shrimp but couldn't do anything. One my of shrimps molted and I thought it's a good sign, but then later I saw this snail attack my shrimp, my shrimp was defenseless and couldn't run. I try to help him immediately but the snail won't let go and the shrimp died...

I took all 4 of the snails out, crushed their shell and feed them to my turtle.
nathangoudie nathangoudie
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  • Posted on: 28/11/2012 5:12
Re: Shrimp keepers be careful with this snail #2
http://www.flickr.com/photos/75680215 ... 8225340669/in/photostream

I will take a clearer picture as soon as possible, i still have some of them in my empty tank now. I want to identify them.

I feel really bad now, my cherry shrimp was fire-red shrimp and it's 3 times more expensive than normal cherry shrimp in my country
Fishlady Fishlady
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  • Posted on: 28/11/2012 9:07
Re: Shrimp keepers be careful with this snail #3
They look like ordinary pond snails from the Physa family. They don't attack or eat healthy shrimps (not sure that any snails do). If the snail attacked a shrimp it must have already been dead/dying or t would have simply moved away.

Are you sure the snail was attacking the shrimp and not its moulted exoskeleton? Shrimp usually hide after a moult until they harden off again.
nathangoudie nathangoudie
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  • Posted on: 28/11/2012 11:53
Re: Shrimp keepers be careful with this snail #4
Yep, it's that snail. These one are really big, twice bigger than the shrimp.

My shrimp was healthy and I only see one exoskeleton at the moment. Ammonia,nitrite is still 0.

First I saw the shrimp was still sitting in plants but then when the snail came, I thought it was just passing by so I look away, after a few min, I saw the shrimp was struggling. It moves rapidly exactly like the way when it got chase but couldn't get away from the sticky snail. I tried to help it by picking the snail up but the snail won't let go until I took both of them out of water. The snail is already dead and it's really soft at the time. a piece of red skin under the head was missing and show white meat there.
Fishlady Fishlady
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  • Posted on: 28/11/2012 12:03
Re: Shrimp keepers be careful with this snail #5
I'm afraid I'm still inclined to think there was a pre-existing problem with the shrimp. I have never heard of any snails like that taking healthy shrimp - even Assassin Snails won't usually take live, healthy shrimp and shrimp can always move faster than a snail. There is something else going on here (IMO).
nathangoudie nathangoudie
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  • Posted on: 28/11/2012 13:52
Re: Shrimp keepers be careful with this snail #6
I don't know, I jsut get rid of the snails to make sure xD I still have malaysian trumpet in the tank.

Maybe the shrimp was too weak after it had molted?

There're 4 left now, should I buy some more or leave them a month and see if they breed?
Fishlady Fishlady
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  • Posted on: 28/11/2012 13:57
Re: Shrimp keepers be careful with this snail #7
I wouldn't add any more at the moment seeing as one has gone due to unknown causes. Wait and see if the rest are healthy first.
nathangoudie nathangoudie
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Re: Shrimp keepers be careful with this snail #8
Okay, how long should I wait?

It's still 3 days until water change by the way
Fishlady Fishlady
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  • Posted on: 28/11/2012 15:52
Re: Shrimp keepers be careful with this snail #9
Have you tested the water in the tank? Test and make sure you have no ammonia or nitrite. Make sure the temperature is suitable. If all that checks out OK wait at least a week and watch for any signs of ill-health. If they all seem well then, you can add some more, though if you spot any of the females looking ready to produce eggs you can just wait for the shrimplets to develop rather than buying more.
nathangoudie nathangoudie
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  • Posted on: 29/11/2012 4:43
Re: Shrimp keepers be careful with this snail #10
I test for it daily. The result is always 0

Temp reach the lowest point at night with 24C and highest in midday with 26C
pH is 7.5
gH and kH both 5d