My jar is about a month old and I’ve observed quite a few of these little guys. They propel themselves with the back two appendages (kind of like frog legs) does anyone know what they are?

by KeepsForgettinLogin

5 Comments

  1. Ordinary-Mind-7066

    Cyclops ostracods, the dangly bits are egg pods

  2. Long_Ad1827

    The lifeblood of most jar ecosystems. Copepods

  3. BlueButterflytatoo

    Copepods, the two black “balls” on either side are egg sacs! They’re so fascinating! I have plenty in both my tanks, and they always have a steady population, even with all my fish eating them

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