Help! What is this?

[RatRatCat]

Just looked in a tank I haven’t looked at in a few days, that doesn’t have any fish, and this CREEPY brown legs are growing from all my plants! Someone help!

 

[otterblue]

Someone more knowledgable will eventually reply, but I'm pretty sure that is just normal growth from a java plant. Happens all the time.

 

[StarGirl]

Looks like a baby java fern.

 

[DaveKS]

Someone more knowledgable will eventually reply, but I'm pretty sure that is just normal growth from a java plant. Happens all the time.

This ^^^

Just a pup plant rearing its head.

 

[Mudminnow]

I agree that this is a baby plant...but I don't think it's a Java fern. I believe your plant is Bolbitis heteroclita.