My dumpys... like to play alot. I have 2 of them in a 30 gallon deep tank. they jump from the glass to the plants and from plant to plant. I think there favorit thing to do is drop from the tall plants with one foot still attached and hang till a cricket walks under them. Then they letgo and drop to the bottom to devower there pray. They also have an olympic event of glass racing... they run around the glass as fast as they can chaising eachother. Well to say the least... they have a lot of fun. Make big messes. Enjoy as much space as they can find. Enjoy......