Why Do I Get All The Weird Stuff?

[fishy55599]

i seem to be getting some weird stuff growing in my tank.
came home to find green stuff growing out my LR so much that some snapped off and is on the sand

it is just so strange

 

[fishy55599]

this is what im on about

 

[MrLiam]

Ive got some of that I think its like a seaweed or something.

 

[sorgan]

thats cheatomorpha

 

[fishy55599]

i didnt think it looked like cheato? but i guess that is possible