As mentioned I have set the scrubber up in one of my MBUNA tanks, will post some photos as I find them (had them all neatly filed on photobucket and the buggers changed the rules and asked for ransom). The 100gal discus tank is cycled but still empty, fish will go in end of September (still too hot for shipping). My multiple tank syndrome has gradually worsened over the last 12 years and about a year ago decided to "do Discus" so started to swat up on this and some Italian forums. As I am getting juvies to grow out I would love to do a parallel test (all other things being equal) between a traditional BB high wc and a low wc+algae scrubber but only got room for one tank so to be on the safe side I will go traditional for the growout period and probably add the scrubber once grown and actually considering if Daphnia could grow in the scrubber, so some would drop in the tank from the overflow and provvide good fresh food and some fun for the fish.