46 gallon bow front. Nano?

Sure is. I don't know what the break technically is... but for me anything smaller than 29G is a "nano" reef.

Little_fish and Dana both have 46g bows.
 
I don't know for me it just depends what you put in it...you could have a big "nano" tank...with a bunch of tiny "nano" fish...and pick smaller rock work...and so on and so on...
 
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