Aquarium Coffee Table

I have a coffee table aquarium 20 gallons and I do not really know if I want to put fish in it. I would like a suggestion on what to do with. Please keep in mind that the table is round and the nature of a dome shape so that most pets will be able to crawl out of it. Thank you

As I said before, do not fish, put the small turtles, you do not need much water for that and good looks .. a˜º

Why not make it a planter? If you stick to low growing plants and patterned leaves might be quite characteristic. Use fake plants if you're not interested in growing things.
Or you can place these glass beads they use for the floral arrangement in the background, add a little water and floating candles. On special occasions you may want them light and a coffee table light.
Just be careful that whatever you put on top of the glass does not mind a little heat.
Beyond that I can think of nothing.

You should make a planetarium with a few ferns and kind of put them on the side. Then, do a good bit of rock wall or something and fill the inside with water. If you have leftover rock to a sort of island and adding a tortoise or two so they do not get lonely.

Trash, or sell it.

Barbie and Ken as exhibitionists