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Mosura pH Down

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Product Description

Mosura pH Down lowers the pH of shrimp tanks by using ingredients which are gentle to shrimps.

After dosing Mosura pH Down, the pH level may rebound, in such cases, check and remove the source of alkalinity in your tank (e.g. some types of ceramics and decorative rocks).

Recommended dosing methods: For a tank with shrimps, dissolve a small amount of pH Down in a cup of water, add this solution to your tank a little at a time. Allow it to mix well before measuring the pH. Do not reduce pH more then 0.5 in 1 day.

For a tank without shrimp/livestock or in a pail of water, dose a small amount of pH Down, allow time for it to dissolve completely and measure the pH. Repeat to process by adding pH Down until desired pH level is reached

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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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