These would go in the tank. Packaging in the image says they are wave-makers, which implies surface to me. Hmmm, but it might be something to try. I am all for double-dipping. When I eventuallly go Marine, I can double-dip some of my equipment too.
I'm sorry, C, that you can't change the tank.
Bad Missus for not understanding that a bigger tank would indeed be better viewed from the location you discussed!
All I know is that who ever decides to marry me better be happy with multiple tanks and cryptocoryne cuttings everywhere! 
I'm sorry, C, that you can't change the tank.


