Green Coraline?

Sep 26, 2006
785
1
0
32
New Jersey
#1
Just wondering the back glass PH and heater are covered in this stuff looks something like Coraline it's a weird green but i noticed some of it looks like it's turning purple-ish but Coraline doesn't change colors does it? What could it be? I'll try to get a picture or two later
 

Lotus

Ultimate Fish
Moderator
Aug 26, 2003
15,115
13
38
Southern California
home.earthlink.net
#3
I have some new green algae that looks like coraline on my newish rock. I did some reading and searching, and found that a lot of the time it will become purple with time. It wasn't clear to me whether the purple was a more mature stage or whether the purple outcompetes the green eventually.