Depends on the fridge, but I wouldn't, unless you keep the 29 half full :-) If the surface area is the same for a tank (a 15 is 1 foot by 2 feet, a 29 is 30" by 1 foot, usually), the depth doesn't matter for most fish. It's why killi people keep so many fish in shoeboxes and so forth -> they have the same footprint as much larger tanks, yet 'detritus tolerant' fish like killies don't really need the extra volume. This works for most fish, too. Big waste producing, "thick" fish like cichlids, goldfish and catfish do benefit from the extra gallonage, though. "The solution to pollution is dilution" in their case (though I'd still opt for max surface area over depth.) My $.02. > From: holly@ourglasshouse.com> To: gsas-member@thekrib.com> Date: Wed, 6 Sep > 2006 12:46:36 -0700> Subject: [GSAS-Member] Tank on a refrigerator?> > I am > going to have limited space but want to try to keep some of my fish. I> was > going to put a 15g on top of my fridge. But I am considering a 29g on> top > instead. Is that just too heavy or do you guys think it will work?> > > Holly> _______________________________________________> GSAS-Member mailing > list> GSAS-Member@thekrib.com> > http://lists.thekrib.com/mailman/listinfo/gsas-member _________________________________________________________________ Use Messenger to talk to your IM friends, even those on Yahoo! http://ideas.live.com/programpage.aspx?versionId=7adb59de-a857-45ba-81cc-685ee3e858fe _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member