cabin
Premium Member
The back tank algae is a good and a bad thing. On the positive side, it coats the glass and makes whatever is there (overflows, for example) blend in with the rock. On the negative side, it sometimes flakes off in chunks here and there and then looks pretty messy until more grows. When looking into the tank, it tends to destroy the sense of depth because the rocks and back wall blend together. The new volume 3 on Reef Aquariums by Delbeek and Sprung shows a really cool way to get a deep water effect in the back by having the back of the tank be deep blue (painted, or blue acrylic), with a fluorescent light behind that to provide diffuse light and if done right it looks like the ocean just continues on....the pictures were great, anyway, and I'd like to try to do something like that in my next tank. In such a case, of course, you must keep the algae scraped off.