Ok. I should have known I would eventually start thinking about this. I haven't told my man yet though; that might not go so well.
I know this is only a little jump, but since I was already given permission from the apartment complex to have a 20 gallon tank, I am wondering why I bothered with a 10.
I don't have the funds to do this just now, but I also know that "where there is a will, there's a way." I am carefully considering getting a 20 gallon to replace the 10. My question is a simple one I suppose. How do you go about doing such a thing if you are not supposed to move the tanks once there is water in it? My plan would be to place the 20 in the same location as the 10 is currently. I would like to keep at least part of the water; or most, I suppose since the size would be increasing. What is the easiest, cleanest way of doing such a thing?
This is all just in my head right now; I don't have anything in the works yet.

I don't think I can get away with setting up both, because I don't think the apartment owners intended for me to have so many tanks (I already have separate ones for multiple bettas).