Using Seachem Prime is easy. For a new tank, add the appropriate amount of Prime according to the size of your aquarium as stated on the product label. When adding or replacing water, add Prime at the same time to ensure the water is safe for your fish. Always follow the dosage instructions carefully. As for maintenance, keep Prime in a cool and dry place away from direct sunlight. Make sure to close the bottle tightly after each use. While Prime is generally safe, avoid contact with eyes and skin. If accidental contact occurs, rinse thoroughly with water. If you have any concerns about the product or your aquarium, it's a good idea to consult a professional or an experienced aquarist.