Like other water parameters in your marine aquarium, stability is also important with pHStability of water parameters is essential to success with marine aquariums, especially when it comes to keeping sensitive invertebrates. Among the various parameters that hobbyists often struggle to maintain at an appropriate level is pH, essentially a measure of how acidic/basic the water is. While the ideal target for pH in a marine aquarium is somewhere in the range of 8.2 to 8.4, it’s more important to maintain a stable pH, even if it’s slightly outside this range, than to constantly chase a particular value within the range. The challenge is, owing to various natural processes going on in the tank, the pH in a closed aquarium system usually drifts downward (there are exceptions, of course), so the hobbyist must take certain steps to counteract this trend. Here are six of them:1) Perform regular partial water changes Regular Saltwater Smarts visitors must be pretty tired of hearing this by now—as I recommend water changes for virtually anything that ails a saltwater system. But the truth is, nothing promotes stability of parameters, pH included, better than routine partial water changes. Every time you replace old salt water with new, you’re not only removing dissolved pollutants and replacing components vital to the health and growth of your livestock, but you’re also replacing compounds that buffer the water against shifting pH (carbonates and bicarbonates)
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