Aquarium fertilizers are specialized nutrients designed to support the growth of aquatic plants in fish tanks. These fertilizers typically contain essential elements like nitrogen, phosphorus, and potassium, which help plants thrive and maintain a balanced ecosystem. They can come in liquid or solid forms and are often tailored for specific types of aquatic plants. Using aquarium fertilizers can enhance plant health, improve water quality, and promote a vibrant underwater environment. It's important to follow the recommended dosage to avoid over-fertilization, which can lead to algae blooms and harm fish. Regular monitoring of water parameters is also essential for optimal results.