Re: [GSAS-Member] Shrimp Huddling at top of Tank.

["Paul M. Wallace" <pwallace@u.washington.edu>]

It has been awhile, but I think the females mate immediately following a molt.  
Do you see any discarded carapaces?  Maybe the WC triggered something?

-Paul

On Mon, 13 Apr 2009, Shango Los wrote:

> This is also true.  It is almost all females at the top.
>
>
> On 4/13/09 8:39 AM, "Paul Wallace" <pwallace@u.washington.edu> wrote:
>
>> Shango:
>>
>> Sounds like swarming where all the males are suddenly interested in the 
>> female
>> and run around an awful lot.  If a female is retreating to a corner (males 
>> are
>> typ. smaller) the males will follow.
>>
>> Fun to Watch!
>>
>> -Paul
>>
>> On Mon, 13 Apr 2009, Shango Los wrote:
>>
>>> Hi All,
>>>
>>> So I noticed my shrimp were huddling at the top of the tank yesterday
>>> morning.  I figured that something had spiked and I better do a water change
>>> quickly.  No sweat, did a 50% and the fish who were looking ok to begin with
>>> were totally stoked.  The shrimp still migrated back to the top though.  In
>>> the evening, I did another 50% change.
>>>
>>> Again this morning they are all huddled near the top.  All I can think of is
>>> that something keeps spiking but that is awfully fast for anything to spike
>>> after those kinds of water changes in a 2 year old heavily planted tank.
>>> The second possibility is that when I put my logs back in (log!) they can
>>> get closer to the surface and they are going there just because they can and
>>> they like it.
>>>
>>> Any ideas?
>>>
>>> Thanks
>>>
>>> Shango
>>>
>>>
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>>
>>
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