I would really like to see everyone's goldfish tanks if they have 'em. I want to get a big 75 gallon tank and keep three goldfish in it when my boyfriend and I get our own place. I'm looking now to start putting ideas together.

Also, I really like the naturalistic tanks best. I'm planning on doing really big river rocks (or some kind of natural rock) on the bottom, but not so much that it entirely covers the glass. They'll have plants and whatnot of course, but I have this idea in my head and I'm not sure how to make it a reality. I'd like to somehow stack large, flat rocks together in front of the filter. I want them to be stacked high enough that they come partially out of the water, and make like a little waterfall which goes down into the tank - the source of the water being the filter/pump. Anyone have any suggestions on that?