Seachem Arowana Buffer 500g

Arowana Buffer™ adjusts pH to 6.5 from either a low or high pH and maintains it there for 2–4 weeks. It safely softens water by precipitating calcium and magnesium. It also improves the ability of arowanas to resist infections. It is the buffer of choice for conditioning water for Asian Arowanas.

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Use 1 level teaspoon for every 40 L (10 gallons) once or twice a month (or as necessary to maintain a pH of 6.5.) Arowana Buffer™ may be initially used daily in cases of high alkalinity until 6.5 is established. It may be added directly to the aquarium at any time. Ideally, it should be used when adding or changing water by dissolving in the replacement water.

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This is phosphate based buffer, like Neutral Regulator and Discus Buffer. It is a blended buffer which will target a pH of ~6.5. It does soften the water and will lower the GH.