Indoor gardens are an interesting addition to almost any space, especially those who enjoy cooking with fresh herbs or admiring colorful flowers in the winter. Indoor gardens can be soil-based systems, but most are hydroponic, which means the plants grow only in water. But how do they perform in the real world? Take good care of your indoor garden, and it may provide you with some beautiful and healthy plants any season. If you are unsure if you are properly maintaining an indoor garden, or want other information, read on for answers to some common questions about these products so you can enjoy fresh herbs, flowers and vegetables all year round. What plants can be grown indoors? Can indoor planting systems be used? You can grow many plants indoors, but most indoor gardens are best suited for planting herbs or small flowers. What plants can grow in hydroponic grow systems? Almost any plant can grow in a hydroponic system as long as it has appropriate nutrients and enough space. Plant size is a determining factor – smaller plants, like herbs, are better suited for most indoor gardens than larger vegetable plants. How often should indoor planting systems feed hydroponic plants? As a general rule, water should be added every two weeks in the indoor planting systems, but the amount and timing of the water added should be determined by the instructions supplied with your indoor garden. How do you set up an indoor hydroponic grow system? Fill the water tank with filtered water and add water treatment, which should include making the water suitable for aquatic life. Then place the fish in the tank and connect the included water pump to keep oxygen supplied to the fish in the water. Once the fish are settled, plant seeds in the tray above the fish tank. A water pump can keep the seeds moist and promote germination. Do hydroponic grow systems need to change the water in the aquaculture system? You do not need to change the water frequently if your system is healthy. However, if it becomes cloudy, replace it with fresh water before returning the fish, and treat the water first.