What is this?

[ReedLem]

This long thing appeared on the back of my fish tank, it’s about 2 maybe 3 inches and is extremely bumpy. I haven’t touched it or anything and I haven’t seen it until today so it came from nowhere (obviously somewhere I just don’t know where from)

 

[Troylee]

Fish poop

 

[vetteguy53081]

This long thing appeared on the back of my fish tank, it’s about 2 maybe 3 inches and is extremely bumpy. I haven’t touched it or anything and I haven’t seen it until today so it came from nowhere (obviously somewhere I just don’t know where from)

Cerith snail eggs

 

[Keko21]

snail eggs

 

[ReedLem]

Fish poop

No no it almost looks calcified and the largest fish I have is a 2 inch saddleback clown fish it looks white and textured like a rock

 

[ReedLem]

Cerith snail eggs

LOL thank you lol, that even didn’t cross my mind; I’m new to the hobby so this makes sense. Thank you so much

 

[Kasrift]

I think it is more likely one of the types of worms like spaghetti worms that makes a sand tube. Either way, not an emergency and should be fine.