How to see eggs of pregnant fire shrimp

How to see eggs of pregnant fire shrimp

Postby natureAddict » Sat Jun 21, 2014 11:16 am

The topic might sound daft but I have a pair of fire shrimp for a few months now, moulted many times n I've yet to see eggs on their belly like the peppermints.

Can some kind soul please enlighten me. Thanks
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Re: How to see eggs of pregnant fire shrimp

Postby Luis A M » Sat Jun 21, 2014 4:03 pm

You are right.Eggs are hard to see in debelius.Against a light background,lower abdomen seems darker in the carrying shrimp.
See: http://nsgl.gso.uri.edu/tamu/tamug01003.pdf
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Re: How to see eggs of pregnant fire shrimp

Postby natureAddict » Mon Jun 23, 2014 9:17 am

Thanks Luis
So how many days old would the eggs be when they are visibly dark
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Re: How to see eggs of pregnant fire shrimp

Postby Luis A M » Mon Jun 23, 2014 2:23 pm

Since day one.The eggs are attached to the pleopods,hidden behind the opaque abdominal plates.Easier to see if you make the shrimp swim to the surface :wink:
Otherwise,you can record how many days between molts and look for larvae the night before. :wink:
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Re: How to see eggs of pregnant fire shrimp

Postby natureAddict » Thu Jul 03, 2014 5:33 am

my fire shrimp molted 3days back, till today I'm still straining to see that black eggs at the swimmerets.

do they always have eggs after they molt?

Thanks Luis, and good luck with your larvae growing :)
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Re: How to see eggs of pregnant fire shrimp

Postby Luis A M » Thu Jul 03, 2014 1:27 pm

No,they don´t always produce eggs after each molt.
But eggs are always produced after molt.And after hatching,always they molt soon. :wink:
Record how many days between molts.This time remains constant.
Instead of checking for eggs,you could check for newly hatched larvae :idea:
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Re: How to see eggs of pregnant fire shrimp

Postby natureAddict » Fri Jul 11, 2014 6:39 am

thanks for the tips Luis.

Actually i was thinking of that .....putting a 100micron net at the bottom of the overflow system of the dedicated tank for the pair . :) that way i just relax n check for the larvae in the morning
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Re: How to see eggs of pregnant fire shrimp

Postby Luis A M » Fri Jul 11, 2014 11:45 am

400 mics will be enough.
Unless the flow is very strong,they resist it and keep close to the surface,near the front wall.They are very easy to concentrate under a light and siphon out.You can also stop the flow for 1 hour or make it slower the last nights before a molt. :idea:
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