There are obviously a ton of options that you can do with your back wall in your reef; bare & clean, coralline, zoas, gsp, montiporas, acros, etc. I wanted to start this thread to get some good ideas on what to do with my back wall. Right now, I've got a bunch of coralline algae growing, but I want something unique! My tank is 90% sps and I'd like to keep it that way, for now at least. I was thinking of growing some cool encrusting montiporas along with some tableing acroporas. Lets see what you've done to make your back wall unique!!!








