Betta ornaments are an exciting way to decorate your aquarium. With something for all tastes, they are an affordable way to enhance your display using fish-safe materials suitable for coldwater and tropical set ups.. Betta tree cave with face will provide your fish with places to hide, explore and even breed. This natural-ish looking piece of decor will look great in any aquarium, vivarium, or terrarium.. Approximate dimensions 18.5Cm l x 13cm w x 20cm h .