Shrimp reproduction questions

ThunderGoose

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1) My lone peppermint shrimp (from Florida so it should be Lysmata wurdemanni) looks to be holding eggs. She's never done this before. So I used my Google-fu and found that they are proandrous hermaphrodites. They all start out as male and them become hermaphrodites (and maybe then become females???). My question - is this species self fertile? I have no plans to try to raise the fry, I'm just curious.

2019 Jan 28 peppermint shrimp with eggs.jpg


2) I was watching my nano tank yesterday and counted my sexy shrimp - 1, 2, 3 females and 1, 2 males. Wait, what? I originally bought five but one disappeared shortly after arrival. This was in late summer or fall of 2017. Between then and now it's been 3 female and 1 male. Could that other male really have been hiding that long (or, more accurately, could I have missed one male consistently for over a year)? Or could an egg hatch and the fry manage to survive long enough to become an adult in a display tank? It's a mystery.
 
Its a shrimp that has had some success in captive breeding. But given their larval size and how often they molt during that stage and the fine foods they eat are not like breeding neocarolinas. But not quite as complicated as amano shrimp.
 

WHAT’S USUALLY THE FIRST CLUE THAT SOMETHING IS OFF IN YOUR REEF?

  • A fish’s behavior or appetite changes

    Votes: 11 15.3%
  • A coral looks different or stops opening normally

    Votes: 44 61.1%
  • Water clarity or surface appearance changes

    Votes: 10 13.9%
  • Equipment sounds or flow seem different

    Votes: 8 11.1%
  • A test result catches my attention

    Votes: 14 19.4%
  • Algae or other growth starts changing

    Votes: 14 19.4%
  • I usually notice when the problem is already obvious

    Votes: 3 4.2%
  • It depends on what’s going on

    Votes: 13 18.1%
  • Other (Post in the comments)

    Votes: 1 1.4%
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