Vallisneria asiastica is a delightful plant with wonderful curls to it and is really an eye catcher. It also loves good lighting. A very easy to grow and keep plant although they prefer the water temperature to not be too warm. Ideal for beginners as they are so undemanding and require very little maintenance.
They will grow fine in gravel however add some root tabs for nutrients or go for a nutrient rich substrate such as Tropica Aquarium Soil. They throw off runners which can later be cut off and re-planted where ever you desire, or alternatively let them grow and spread naturally and create a curtain effect.