The female stores her unfertilised eggs in the saddle, the light patch seen on her back. Then when she sheds her shell the male does the business and the fertilised eggs are held outside her body underneath until they hatch. Young or threatened females may drop the eggs which are quickly 'recycled' by other shrimp or fish. Don't be disheartened by this as mine did it several times. Last Nov I had 12 shrimp and now I have easily 100+, even with fish sharing the tank (tetras and corys).
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