API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle

Ammonia spikes are one of the most dangerous threats your fish face, and without fast action, they can be deadly within hours. The API AMMO-LOCK freshwater and saltwater ammonia detoxifier is an effective solution designed to neutralize toxic ammonia before it harms your fish, giving you the peace of mind that comes with a properly maintained tank.

What sets the API AMMO-LOCK freshwater formula apart from basic water conditioners is its ability to instantly detoxify both free ammonia and chloramine, converting harmful ammonia into a safe, non-toxic form that your biological filter can still process. Unlike some treatments that simply mask the problem, this product works with your tank’s natural cycle rather than disrupting it. The 16-ounce bottle treats up to 946 gallons of water, making it a practical choice for hobbyists managing multiple tanks or larger setups.

• Instant ammonia detoxification converts toxic free ammonia into a safe form within minutes, protecting fish during cycling, water changes, or emergency spikes.
• Works in both freshwater and saltwater aquariums, so you can use a single product across all your tanks without stocking multiple solutions.
• Compatible with biological filtration because the detoxified ammonia remains available for beneficial bacteria to process, keeping your nitrogen cycle intact.
• Treats up to 59 gallons per use with a 30 mL dose, and the 16-ounce bottle gives you multiple treatments before you need a refill.
• Safe for all fish, invertebrates, and live plants, making it a versatile addition to planted tanks, reef setups, and community aquariums alike.
• Recommended by aquarium professionals as a reliable first response to elevated ammonia readings detected with a test kit.

The API AMMO-LOCK freshwater detoxifier is best for new tank owners cycling their aquarium for the first time, experienced hobbyists dealing with sudden ammonia spikes after a water change, or anyone transporting fish and needing to protect them in a temporary holding container. If you keep sensitive species like discus, shrimp, or marine fish, having this on hand is especially important since these animals have little tolerance for ammonia exposure. Always pair it with an accurate ammonia test kit so you know exactly when and how much to dose.

Check Amazon for the current price on the API AMMO-LOCK 16-ounce bottle, and look for bundle deals that include test kits or other water treatment products to save money on your aquarium maintenance routine.