Arrowhead plant does well indoors in a hanging basket or on a pole or trellis out of direct sun. Let the soil dry completely between waterings. Mist the plant regularly.
As with most house plants, the most important thing to remember is don't over-water. Water only when soil is dry. Give it plenty of light, but keep it out of direct sun and out of extremely drafty areas.
Be sure to allow the plants soil to dry out between waterings. If it is to wet the plant can get root rot. Mist the plant every day to keep it moist. The plant can be fertilized once a month.
First of all, you should not over water this plant - let it dry out between waterings. Mist the plant daily to help with growth. You can also add fertilizer once a month. Do not place in direct sunlight; may cause it to burn.