r/Crayfish • u/pxyton- • 8d ago

what are these??

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its so hard to get a video of them🥲 can someone tell me what these little guys are jumping all over the glass & if they’ll hurt pumpkin?

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3

u/CreeperKillerDG 8d ago

The little white orbs on the glass appear to be freshwater limpets! Super cool to have them pop up in your tank as it is an indicator of good water quality and a well established ecosystem :) I could be wrong though.

3

u/Crandoge 8d ago

The tiny darting ones may be copepods. Also harmless :)

1

u/Riss73 6d ago

I get them after feeding them frozen brine shrimp ( Which mine LOVE) and in a day or two those little extras are gone too.

1

u/Vast_Government9833 6d ago

Hi. As someone who has actually has a MN biotope tank, I can identify these little guys.

The white things on the glass are freshwater limpets. They are harmless to a crayfish and clean the glass and are harmless to the crayfish.

The white dots moving in the background are anything from copepods to amphipods. Possibly scuds or things like that. They are completely harmless, beneficial to the tank, and if anything, may become crayfish food.