If you use driftwood, soak it in water for a while to ensure that it will sink and not float. If the garden is large, use a filtration system to help remove dead plant material and maintain clarity. Use a full-spectrum artificial light on top of the tank to light the garden sufficiently. If necessary, use a small heater. Prune frequently as needed.
Aquatic plants can grow quickly, the more vigorous types shading out the smaller ones.
Root the pruned pieces in other areas of the tank. To ensure health and growth of plants, use a fertilizer regularly, either in liquid or slow-release tablet form. Clean the tank as needed to remove algae from the glass and keep the water clear. Get creative and design a garden that reflects a certain region, such as the Amazon River, Southeast Asia or Africa. With more than 100 species of water plants to choose from, there are plenty of varieties available that will allow you to create a spectacular landscape.