Seachem Goldfish Buffer
Seachem Goldfish Buffer (300g)
Seachem Goldfish Buffer maintains the optimal pH range of 7.2–7.8 specifically suited to goldfish, koi, and cold-water pond fish. Goldfish thrive in slightly alkaline, well-buffered water with stable pH — unstable pH causes immune suppression and increases susceptibility to bacterial infections. Unlike general-purpose pH buffers, Goldfish Buffer is calibrated to the cooler temperatures at which goldfish are kept, ensuring accurate pH stability at 65–72°F. It also provides a gentle KH boost that helps maintain buffering capacity between water changes.
Key Features
- Maintains pH 7.2–7.8 — ideal range for goldfish and koi
- Calibrated for cool-water temperatures (65–72°F)
- Stabilizes KH for long-term pH buffering between water changes
- Safe for all goldfish varieties — fantails, orandas, ryukins, and more
- Works in indoor tanks, ponds, and cold-water species setups
Expert guidance
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Cameron draws on 25+ years in the hobby and a marine biology background to help you choose the right fit for your system.