Here's some algae that has been growing... I've been trying to ignore it hoping that it would go away. roud: Since that didn't work, I need your help. I don't know what to search under and can't seem to find it under a list of algae. What is it caused by, to avoid it in the future? And how do I get rid of it? It's only growing on a few plants, mainly the one in the first picture.