Unknown plant growing on it's own?

[Foxell]

Today I was looking at Jango's tank and noticed these little plants all over his tank. Some are tall, some are short, and they all have a little orangish seed looking thing at the end of them. I have no idea what they could be or where they came from. I don't have any live plants in my tank and have not put anything new in it. Whenever I clean my tank I vaccum the gravel, but last time [almost a week ago] I was in a rush so I didn't do the gravel and just took out/replaced the water. So these things have had about a week to grow. The only thing I've ever put in my tank with seeds was mini tomatoes for the snails to eat. That was about 2 weeks ago. They're probably not going to stay because they'll get up rooted when I clean the tank next.

Any ideas on what these could be? There's a picture I took of them below...

[purplemuffin]

Oh, that's weird. I hope someone can answer your question.

[Oldfishlady]

How neat.....I would remove that one seed on the top of that plant for a closer look...I bet they are tomato seedlings-since that is the only thing you have added to the tank or if you have birds that their seeds could have fallen in the tank or something...