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-   -   When are cherry shrimp most likely to drop their eggs? (http://www.plantedtank.net/forums/showthread.php?t=164542)

raven_wilde 02-08-2012 05:19 PM

When are cherry shrimp most likely to drop their eggs?
 
Sooner or later into their 'pregnancy'?

I ask because my boyfriend and I are considering a growth charting experiment wherein we remove one berried female from our main shrimp tank and separate her off into a (fully cycled) tank devoid of other shrimp. We want to have a control sample of baby shrimps we can monitor for developmental progress.

So would it be best to select a female with smaller berries? or one bursting with nearly ready eggs?

jasonpatterson 02-08-2012 05:28 PM

The eggs pretty much stay the same size throughout their development, much like a chicken's egg does. To answer your actual question though, if a shrimp is going to drop its eggs, it usually does so in the first week after it has become berried. As long as the transfer is gentle and the water parameters of the two tanks are close, it's fairly unlikely that she'll drop the eggs. It does happen from time to time though, just so you know.

mallorieGgator 02-08-2012 08:05 PM

Why not put a male and not berried female in. Then, let them breed and once she becomes berried, remove the male back into the other tank.

diwu13 02-08-2012 10:35 PM

As jason said, if the female holds the eggs past the first week, you're generally good to go. Unless there's a huge change in your tank they will generally release young after that first week.

So if you wanted to move females, it won't matter what size clutch they have. However, for research purposes you'd want females with more eggs so you get more data, and decrease the randomness. Move a female over, if she drops eggs then move her back and wait a month. If she keeps them past the first week you should have babies.


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