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💧 Keep your pond’s pH flawless — because your koi deserve the best!
NT Labs Koi Care KH Buffer Up is a 5kg powder designed to safely increase and stabilize carbonate hardness (KH) in pond water, preventing dangerous pH fluctuations that can harm fish. Easy to dose using pond volume calculations or an online tool, it works best alongside NT Labs test kits to maintain optimal water quality. Made in the UK to high standards, it’s perfect for both novice and experienced pond keepers aiming for a healthy, balanced aquatic environment.









| ASIN | B008DVY5JK |
| Best Sellers Rank | 15,111 in Garden ( See Top 100 in Garden ) 90 in Water Garden & Pond Treatment |
| Brand Name | NT Labs |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.6 4.6 out of 5 stars (197) |
| Included Components | Powder |
| Item Form | Powder |
| Item Highlight | Carbonate hardness minerals increase the alkalinity reserve of pond water to prevent sudden catastrophic pH crashes. |
| Item Type Name | Pond Fish Food |
| Item Weight | 5 Kilograms |
| Manufacturer | NT Labs |
| Manufacturer Part Number | 00428 |
| Model Number | NT Labs |
| Target Species | Fish |
| UPC | 733809004282 |
| Unit Count | 5000.0 gram |
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