What is this? I found three of those in the surface of my tank. They're black when out and they don't move at all, I picked all three of those with my finger. Is it harmful? Where does it come from? If if comes back, how do I get rid of it?

https://www.reddit.com/gallery/1q6efve

Posted by CandidDependent3316

2 Comments

  1. WallowingInnSelfPity on

    Kinda looks like springtails I have outdoors in my area, they’ll end up in my bowls of water outdoors. I have read that they do move indoors.

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