Thanks for the replies. So I took off one of the ray2s and now only using one of them. Did notice that the algae came to a halt now I just gotta clean it all out. As for why I got two I was thinking it was like the ecoxotic fresh water module where one didn't really cover the tank front to back evenly so two should do the trick. Lesson learned though.
Sent from my iPad using Tapatalk HD