id these zoa looking things

Cant tell from pic but think i know what they r forgot name but heard they bad and sting stuff and spead fast . And hars to get rid of. Hydr????????? Idk my brain aint working . Plus i only see blue in u pic
 
I think that's what they are. I googled and they look like what I saw

Kalk paste over them. I've done a little reading and either that, or entombing them in super glue works. If you go the kalk route, make a nice kalk and water slurry, really thick like mortar, then cover them completely with your flow off.

Just do some reading up on them yourself though. They have several good ways of getting rid of them.
 
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