Aquarium water buffer that stabilizes and maintains pH for when pH drops below 8.2 Benefits:

• Raises & holds pH to 8.2-8.4 for ideal marine conditions
• Makes calcium available for corals

Follow the API Easy Care Guide and use MARINE BUFFER MAX when:

• pH levels drop below 8.2 in an established aquarium
• Maintaining KH, essential to corals that utilize calcium

Stabilizes and maintains pH for ideal marine conditions. Increases carbonate hardness (KH) to buffer (or hold) pH to 8.2-8.4. Use with API MARINE CALCIUM to balance calcium and carbonate levels in reef aquariums.

Treats: 1 scoop (5cc) treats 10 U.S. gallons

Directions: Add 1 scoop per 10 U.S. gallons (38L).

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months’ remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number — or email us, if you would rather — and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.