
I don't se very many scenarios where the stocking would favor the 8 footer. The 6x30x30 will be a better looking tank with the added height and depth. Of coarse there will be those that whine about how much harder it is to work on a 30" tall tank![]()
If the tank was saltwater I'd say the 96" just because it is shorter and easier to light (anyone who grows corals will get my drift...) but I'm assuming your going freshwater in which case it would depend completely on your stock. Oh, and a 30" tall tank is more difficult to clean (that is the size on my 187 gallon). With the longer tank you could do quite the fantastic CA/SA cichlid display...