API products

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Quickly browse our Swell UK stock to easily find the best API products for you, including maintenance treatments to help you keep on top of your tank, test kits to help you diagnose a problem, and specific treatments to allow the swift resolution to any problems you might find, keeping your tank water healthy and clean for the fish and plants you keep – isn’t that what it’s all about?

Take advantage of API’s 50 years of aquatics experience in the form of their products, featuring a whopping 25 global patents for their innovative fish keeping ideas, designed to make your life easier, and your fish’s life even better.