Seachem Prime 1L – Concentrated Water Conditioner for Aquariums

Seachem Prime 1L is a highly concentrated, complete water conditioner designed to make tap water safe for freshwater and marine aquariums. It rapidly removes chlorine and chloramine while detoxifying ammonia, nitrite, and nitrate, making it ideal for both routine water changes and emergency situations.

Prime is up to 5× more concentrated than standard dechlorinators, making it especially cost-effective for large aquariums. Its non-acidic formula will not affect pH and does not over-activate protein skimmers, ensuring stable water conditions in reef and marine systems. Prime is also safe to use during tank cycling to help protect fish from toxic nitrogen compounds.

Whether used during setup or regular maintenance, Seachem Prime provides reliable, powerful water treatment you can trust.

Key Features:

• Removes chlorine and chloramine
• Detoxifies ammonia, nitrite, and nitrate
• Ideal for use during tank cycling
• Up to 5× more concentrated than standard conditioners
• Non-acidic – does not affect pH
• Will not over-activate protein skimmers
• Safe for freshwater and marine aquariums
• Highly economical for large tanks

Seachem Prime 1L is a powerful, all-in-one water conditioner that delivers maximum protection against chlorine, chloramine, and toxic nitrogen compounds. Its highly concentrated, reef-safe formula makes it an essential product for aquarium setup, cycling, and ongoing maintenance—especially for large aquarium systems.