My wife has her own tank. I like SPS, LPS, mushrooms and clams; shes into zoas, acans, and blastos.........so its actually kind of nice to have the two different tanks with different stuff to do. Its funny we have actually have a nice little system when it comes to chores, ie I make the water, she does the testing and fragging, I do aquascaping and the cleaning. Then again, we are pretty much the same person, same education, same career, same interests etc.....