Maybe so small snuck in somewhere and just grew. With a plants or substrate. Don’t recall parasites or worms with those eyes and headshape.If an eel, I didn't put it in there, and I never saw it alive - just floating.
No - in my basement. It is on the floor though and therefore doesn’t get as much attention as some of the other tanks - wish I had known he was in there and maybe he would have livedIs there anyone else who has access to the tank? Maybe someone put it in there?
How very mysterious
No - just a little bit of Java moss and a bunch of duckweed - there was floating salvina at one timePlanted tank? I have had snails ride in on plants, maybe it came in on a plant as an egg.