What's better, one large tank (180g) or two medium tanks (90g) ?

[kien]

Thanks for all the input! I don't think I have a specific need for a species tank. The more I think about it, the less keen I feel about having to maintain multiple tanks. It is enough to maintain the display and the sump! One big tank it is then. You made a very good point at lunch today Tony.. you can easily spread yourself too thin by having to maintain multiple tanks.