Like the name suggests, this plant looks like the top of a pineapple. Dracaena compacta is most commonly used as a landscape plant or in terrariums. Dracaena compacta has been used as an aquarium plant also because of its ability to be submerged for short periods of time. Pineapple Plant as it is more commonly known should only be submerged for periods of up to a month and then grown emersed to regenerate. Dracaena compacta would be a good choice for topping betta bowls.