It all comes down to people's own definitions and it can be hard to reach consensus on things like what makes a nano. I spend alot of time on nano-reef.com and it seems that over there anything up to a 34 gallon red sea max is considered a nano. I think once you start getting into sumps etc. you are kind of getting out of what a nano is about; a small self contained bit of reef or ocean.
This is of course my opinion only and I am happy to entertain other people's thoughts and experiences on it. In the end somebody else will make the call on the rules for the contest. Hopefully they will have found this debate useful and will take into account the input we have all made to come up with something reasonable. And hopefully we can all be satisfied with the outcome. There will undoubtably be some who end up not getting what they want but c'est la vie, non?
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