If you don’t like the way a decoration or plant you bought was placed in your aquarium, you’re more than welcome to change things up. To relocate, resize, or rotate an item, do this:
1. Tap the item to open the menu below it.
2. Enlarge, shrink, or rotate the item by tapping the plus, minus, and arrow icons, respectively.
3. Tap the item and drag it around without releasing your finger to relocate it.