Seachem Prime Ammonia Detoxifier is a highly concentrated, all‑in‑one water conditioner designed to keep your aquarium water safe and stable. This 1L (34 oz) bottle is ideal for fishkeepers with multiple tanks or larger aquariums who want reliable protection in every water change.

Why choose Seachem Prime for your aquarium?

• Detoxifies ammonia, nitrite & nitrate – Converts toxic compounds into a safer, non‑toxic form that your biofilter can process, helping protect fish from burns and stress.
• Instantly makes tap water fish‑safe – Removes chlorine and chloramine so you can use tap water confidently in both freshwater and marine setups.
• Supports tank cycling – Ideal for new aquariums or after filter maintenance, helping reduce toxicity while beneficial bacteria establish and grow.
• Protects fish slime coat – Promotes the production and regeneration of the natural slime coat, improving resilience against stress and minor injuries.
• Stable water chemistry – Non‑acidic formula that will not impact pH or overactivate protein skimmers in marine and reef systems.
• Cost‑effective, concentrated formula – A small dose treats a large volume of water, making this 1L size excellent value for regular water changes.

Perfect for a wide range of aquarium setups

• Freshwater community tanks, planted aquariums, and cichlid setups
• Saltwater, reef, and fish‑only marine aquariums
• New tank setups, quarantine tanks, and hospital tanks
• Routine water changes and emergency ammonia or nitrite spikes

When to use

• At initial tank setup to help manage ammonia and nitrite during cycling
• At every water change to neutralize chlorine and chloramine
• After adding new fish or performing major maintenance
• Whenever test results show elevated ammonia, nitrite, or nitrate

Seachem also donates a portion of profits from specially labeled Prime bottles to support rhino conservation in South Africa, allowing you to care for your aquarium while contributing to wildlife protection.

Size: 1ea / 1L / 34 oz
Species: Fish

Use Seachem Prime as directed on the bottle for safe, effective water conditioning in every aquarium you maintain.

Additional information