What is this?

[Emarie]

So I just got rid of a heavy detritus worm problem. I cleaned the tank, did large water changes, and cut way back on feedings. Over the past few days I went from hundreds to only a few. Now, I find this chilling at the top of the water in the tank? What is it? It's much larger than the detritus worms, they were almost microscopic, and it is the only one.

 

[Essjay]

Does it move/wriggle or just drift with the current? Just going by the photo it looks most like fish poop to me.......

 

[Emarie]

Does it move/wriggle or just drift with the current? Just going by the photo it looks most like fish poop to me.......

It does move and I have 4 tiny fish I have never seen a poop that size lol.

 

[FishGuest5123]

I was going to say fish poop too. Does it have a pointed head? If so, it’s planaria.