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Available Volumes: 118 ml, 237 ml, and 473 ml
API Ammo Lock is a high-performance water conditioner scientifically proven to protect fish from the toxic effects of ammonia. In a closed aquarium environment, ammonia levels can spike rapidly due to fish waste, uneaten food, or a disrupted biological filter. This fast-acting formula works instantly to neutralize these threats, ensuring your aquatic inhabitants remain safe while your filtration system catches up.
Unlike some treatments that simply mask the problem, Ammo Lock converts toxic ammonia into a non-toxic form that remains safe for fish but still accessible for your "good" nitrifying bacteria to consume. This allows your biological filter to continue developing or recovering without sacrificing the health of your fish.
Key Features:
Instant Detoxification: Works immediately upon contact to neutralize toxic ammonia, providing a critical safety net during "New Tank Syndrome" or filter failure.
Cellular Protection: Scientifically proven to protect fish cells against ammonia stress, promoting healthy gill function and respiration.
3-in-1 Water Conditioner: In addition to locking up ammonia, it effectively removes chlorine and chloramines from tap water, making it safe for immediate use.
Biological Filter Support: Locks ammonia into a non-toxic form that can still be broken down by your aquarium's natural bio-filter.
Stress Reduction: By eliminating chemical irritants, it helps prevent fish stress and supports a stronger immune system.
Versatile Formula: Safe and effective for use in both freshwater and saltwater environments.
Ideal for: All Freshwater and Saltwater Fish
Recommended Use: Essential for new aquarium setups, during water changes, when adding new fish, or whenever an ammonia spike is detected via testing.


Need help with placing an order, delivery, or something else? Start with our Help Page — or message us anytime for support.
