Buying these strips in the 100-count is so much more economical than the 25-count. It allows you to monitor your aquarium water more frequently, which is important for keeping your fish healthy. While the strips don't provide the pinpoint accuracy of the liquid tests, they are a handy way of gauging the general condition of various water factors - such as the hardnesses, pH, nitrites, and nitrates - to know whether you are in the safe range or if things are amiss. This allows you to take fast action and to see whether your solutions are having any effect. For example, in my largest tank, I test weekly to keep an eye on nitrates. As soon as I notice a slight increase, I know it's time to change out the NitraZorb and add a fresh or reconditioned bag to my filter. This way, nothing gets out of hand. If you're not going to care properly for your aquatic animals, then don't have them! They are innocent living beings, totally dependent on the skill and attention of their human caretakers, so treat them right. Read full review
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