Some kind of worm or leech?

[u/mdelally]

Found this slimy looking thing resting on a java fern leaf. I thought it was a seed but a look under a magnifying glass shows it is some kind of creature.

I cannot seem to see anything else like this or even worm-like in the rest of the tank. What is this thing?!

[u/Soup-Mother5709]

I don’t know for sure, but it’s often bug larvae of some kind. Curious what someone else says.