Yeah I get that, IMO nano tanks are a challenge due to small water volume. I don't really see anything larger than a 20 gallon as much of a challenge, in that way, of course theres the rest of the "fun" that goes along with reef tanks in general
![#wink](images/smilies/icon_wink.gif)
Thats just me tho.
![#biggrin](images/smilies/icon_biggrin.gif)