What are these guys? They’ve been multiplying pretty quickly in a jar I have

3 Comments

1. 

   whistblower34 3 years ago

   Nematodes they are everywhere and multiplying so fast, pain in the arse. I don’t know how to get rid of them

2. 

   thejadsel 3 years ago

   That looks more like detritus worms to me. They eat decaying organics, and should be harmless to other things living in the jar. They popped up in one tank of mine, thanks to some messy goldfish, and I had no idea what they were at first either.

3. 

   MissiKat 3 years ago

   Detritus worms. Harmless.