Just my $.02... But I just bought a 24 deep tank( against most advice) and added a DSB.. I love it! I looks humongous being so tall.. I dont mind at all using a step stool to get into it, ( esp since I'm a midget, and let's be honest, stepstools are my friend!) compared to how much I hated bending down to look into my old 18 in deep tank.. If I was building from scratch I would do a 40 in stand and and a 24 tank.. My stand is only 36 ( I'm 2nd owner) but I digress.. I'm on 'team 25!' Unless your lights need changing.. Lol that's a sore spot in my house .. Poor hubs!