Seachem Alkaline Buffer - 1,200 Grams (2.6 lbs) |

Seachem Alkaline Buffer

by Seachem

$34.99 (You Save 46%)
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Key Features

  • Raises pH and increases alkalinity
  • Buffers pH between 7.2 and 8.5
  • Great for planted aquariums or very hard water
  • Q: What is the difference between Neutral Regulator, Discus Buffer, Alkaline Buffer, and Acid Buffer? A: Neutral Regulator and Discus Buffer are phosphate-based buffers providing a very strong and stable buffering system. Alkaline Buffer and Acid Buffer are non-phosphate buffers, which although less stable than a phosphate buffer, are ideal for the planted aquarium where high phosphate levels would lead to an algae problem.
  • Q: Is Alkaline Buffer a sodium bicarbonate? A: Yes, it is a sodium bicarbonate-based buffer.


Seachem Alkaline Buffer 1,200 Grams (2.6 lbs)

Seachem Alkaline Buffer raises the pH and alkalinity (KH) of your aquarium water and holds it steady between 7.2 and 8.5 - an ideal range for most freshwater environments. Alkaline Buffer is safe, gentle, and phosphate-free to reduce the risk of algae or cloudiness.

Seachem Alkaline Buffer is a sodium bicarbonate-based buffer. This makes it slightly less stable than phosphate buffers, but better suited for planted aquariums where adding more phosphates would lead to an algae problem.


300 grams (10.5 oz): Treats 860 Gallons

600 grams (1.3 lbs): Treats 1,720 Gallons

1.2 kg (2.6 lbs): Treats 3,440 Gallons

4 kg (8.8 lbs): Treats 11,640 Gallons

Directions: To increase pH, use 1 teaspoon (7g) for every 80 L (20 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.



Brand Seachem
UPC 000116023702
SKU 237
Item Number L-SC0237090915D41-17003
Size 1,200 Grams (2.6 lbs)
Weight 3 lbs.
Pkg Dimensions 8" (L) x 4" (W) x 4" (H)

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Reviewed by Darci F. on Apr 7, 2021

Great product

Reviewed by Travis I. on Mar 5, 2021

Seachem Quality you've trusted for years.

Reviewed by Vicki A . on Mar 2, 2021

Reviewed by Marian C. on Feb 13, 2021

Better Than Expected

Reviewed by Clarence C. on Feb 1, 2021

It worked

Reviewed by Reed L. on Jan 20, 2021

Love seachem

Reviewed by Cindy Bussell on Nov 24, 2020

Works as and easy results!

Reviewed by miranda w. on Nov 21, 2020

Huge amount.

Reviewed by Mark and Karen G. on Nov 15, 2020

Alkaline Buffer

Reviewed by Grigore Beldean on Oct 31, 2020

seachem alkaline buffer

Reviewed by Brenda H. S. on Oct 22, 2020

Does what it is supposed to

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