

API® pH DOWN lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of acidic or alkaline conditions in water, where a value of 7.0 corresponds to a neutral pH, pH values about 7.0 are considered alkaline, and pH values below 7.0 are considered acidic. Different fish need different pH levels to be healthy, so it is important to test your water regularly to ensure pH levels fall where they should. Product is fast-acting, colorless, easy to use, and will not cloud aquarium water. Because it is phosphate-free and nitrate-free, pH DOWN will not encourage algae-growth.
Please refer to the estimated delivery time frame.
Aussie Warranties & 30-Day Happiness Guarantee
We stand behind the quality of our products! All come with Australian manufacturer warranties, and on top of that, we offer a 30-day satisfaction guarantee. So, if you're not thrilled with something (for any reason!), just send it back unopened, unused, and in original packaging within 30 days.
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To return an item, shoot us a message before sending it back. This helps us track your return and process it quickly. Include your details and the reason for the return so we can get you sorted ASAP.
Estimated Delivery Time Frame: 5 - 10