Using your Penn Plax Infrared Quick Mesh Aquarium Fish Net is easy. For cleaning up spilled fish food, simply dip the net into the water and scoop up the food gently. When you need to move fish between tanks, slowly approach the fish with the net, being careful not to startle them. The red color of the net will help you get closer without scaring them. You can also use the net to rearrange aquarium decorations. Just be gentle so you don't damage the decorations or the tank. As for maintenance, after each use, rinse the net thoroughly with clean water to remove any debris or residue. Let it dry completely before storing it. Avoid using harsh chemicals on the net as it might damage the vinyl covering and the mesh. Store it in a dry place to prevent any mold or mildew growth. With proper use and care, your net will last a long time and serve you well in your aquarium.