Most aquarium hobbyist know the importance of aquarium test kits. Monitoring and maintaining the ideal water environment for fish can literally mean the difference between life and death for your little gilled friends. It doesn’t matter if you have a salt water or fresh water home for your fish the water needs to be checked regularly for ph, ammonia, nitrates and more. There is a large variety of test kits available on the market today and most are available right online for you to purchase. What type of kit you order depends on what you need to test your aquarium for. If you are a beginner or like to keep a steady eye you may want to go with a five in one kit where water hardness, nitrates and three others can be tested with one simple test strip. If you have had your tank for awhile and only need the occasional test kit to check for unexpected problems you may choose to go with a monitor or controller.