SKU: 51108928947

Seachem Alkaline Buffer

Sale price$135.90 Regular price$151.00
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

Seachem Alkaline BufferSeachem Alkaline Buffer Seachem Alkaline Buffer is used to raise pH and alkalinity in planted aquariums, adjusting pH to a range of 7. 2 to 8. 5 without adding phosphates. Adjusts pH to 7. 28. 5 Designed for use in planted aquariums Increases alkalinity Contains no phosphate Alkaline Buffer is a nonphosphate buffer to raise pH and alkalinity (KH) and buffer with Acid Buffer. These buffers are designed for the planted aquarium or for very hard water

Seachem Alkaline Buffer

Seachem Alkaline Buffer is used to raise pH and alkalinity in planted aquariums, adjusting pH to a range of 7.2 to 8.5 without adding phosphates.

  • Adjusts pH to 7.2—8.5
  • Designed for use in planted aquariums
  • Increases alkalinity
  • Contains no phosphate

Alkaline Buffer™ is a non–phosphate buffer to raise pH and alkalinity (KH) and buffer with Acid Buffer™. These buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem. Alkaline Buffer™ raises pH and buffers between 7.2 and 8.5. It is gentle, and safe, and enhances the freshwater environment.

To increase pH, use 1 teaspoon (6 g) for every 80 L (20 US gallons) daily until the desired pH is reached (this dose raises alkalinity by about 1 meq/L (2.8 dKH)). For precise dosing, use the Seachem Digital Spoon Scale.

In order to adjust pH gradually, use Alkaline Buffer™ with Acid Buffer™. When using Alkaline Buffer™ & Acid Buffer™ together to target a specific pH, utilize the suggested ratio chart.

HINT: First determine the amount of Alkaline Buffer™ needed for the volume of water. This should be determined based on your desired alkalinity (KH). Then, divide by the number in the middle column to obtain the correct amount of Acid Buffer™ required.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 51108928947

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Ant Farmer 1
Whiting, US
★★★★★ 5
Fits well and installs easily.
Size: AF997
This filter looked about the same as the OEM filter. It installed in about a minute. The quality appeared to be fine. It was protected in a cardboard box. It fit my 2014 Subaru Outback perfectly. I just installed it an hour ago so I don’t have any long term observations about longevity or effectiveness. I can’t see any reason why it would not work as well as the original, it seemed identical.
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Reviewed in the United States on May 29, 2026
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Nicholas K
Natrona Heights, US
★★★★★ 5
Great filter
Size: AF259
This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.
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Reviewed in the United States on May 19, 2026
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Amazon Customer
Phoenix, US
★★★★★ 5
Great fit and quality
Size: AF113
Not a complicated product, but after going to 2 different auto parts stores and this not being in stock, Amazon to the rescue. Arrived the next day and the quality is definitely on par with “store brand” ones from retailers. Definitely cheaper as well.
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Reviewed in the United States on April 23, 2026
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AC
West Palm Beach, US
★★★★★ 5
Fit my 2014 Accord perfectly
Size: AF476
Seems to be the same quality as OEM. Fit perfectly. Easy to install.
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Reviewed in the United States on April 24, 2026
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Becca
Phoenix, US
★★★★★ 4
Affordable priced. Fits well
Size: AF377
They work good in my 2019 Toyota RAV4
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Reviewed in the United States on May 11, 2026

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