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🪸 Elevate your reef’s vitality with science-backed alkalinity mastery!
Seachem Reef Carbonate is a premium 500 mL liquid conditioner featuring a concentrated 4000 meq/L blend of carbonate and bicarbonate salts. Designed specifically for reef aquariums, it stabilizes pH around 8.3-8.4 and maintains optimal alkalinity (3–6 meq/L) to promote healthy coral growth without depleting essential minerals like calcium. Trusted by aquarists since 2004, it outperforms standard sodium bicarbonate products by delivering superior reef water chemistry balance.

| ASIN | B0002DGM5C |
| ASIN | B0002DGM5C |
| Allergen Information | Abalone Free |
| Best Sellers Rank | #41,918 in Pet Supplies ( See Top 100 in Pet Supplies ) #357 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Customer Reviews | 4.8 4.8 out of 5 stars (440) |
| Date First Available | June 9, 2004 |
| Global Trade Identification Number | 00000116066303 |
| Item Form | Liquid |
| Item Type Name | Aquarium Conditioner |
| Item Weight | 1.4 pounds |
| Item model number | 663 |
| Liquid Volume | 500 ml |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer Part Number | 663 |
| Model Number | 663 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Product Dimensions | 7.6 x 2.1 x 1.5 inches; 1.35 pounds |
| Target Species | reef aquarium |
| UPC | 000116066303 |
| Unit Count | 1 Count |
| Warranty Description | As Labeled |
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