I have a 75 to! (FOWLR though) so I don't have a fuge for that either. It's not like the fuge wouldn't be nice on that smaller tank also but...IMO it's really not needed. I am very proud of my 29gal loaded with corals of all kinds, two clowns and one blenny- all of it is healthy as all heck w/out a fuge. I have one of those CPR back pack skimmers- I like it, some don't. I have never myself had a problem with it, I have to empty it about every other day or so depending on what I feed and what not... I can't remember what the single one is rated for in terms of gallon size but I can tell you it's more than enough for the 29.