This isn't going to happen now but I just wondered how I would go about it if I moved in the future.

Right now I have a 29 gallon BioCube. Say if I found a larger tank, what would be the safest way to transfer the contents of my BioCube over?

Now I've had freshwater for a couple of years and I would just pretty much try to keep about 50% - 25% of the water, keep all the contents inside the aquarium, and keep the filter. But I ask because this is my first saltwater tank and I'm sure it's a little different.

What steps have any of you guys taken to safely upgrade to a bigger tank?