API Ammo Lock – Instant Ammonia Detoxifier for Aquariums
API Ammo Lock is an essential emergency solution for any fishkeeper dealing with toxic ammonia spikes. Designed to work instantly, Ammo Lock chemically neutralises free ammonia in aquarium water, making it non-toxic to fish while still allowing beneficial bacteria to consume it naturally.
This makes it one of the safest and fastest ways to protect fish during new tank cycling, filter failures, overstocking, or unexpected ammonia surges.
Developed by API, Ammo Lock is trusted worldwide as a go-to ammonia control product for freshwater aquariums.
What Does API Ammo Lock Do?
Ammo Lock converts toxic free ammonia (NH₃) into a non-toxic, bound form that fish can safely tolerate. Unlike ammonia removers that strip nutrients or disrupt biological filtration, Ammo Lock allows your beneficial bacteria to continue breaking ammonia down naturally.
This means:
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Immediate fish protection
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No interruption to the nitrogen cycle
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Safer long-term tank stability
Key Features & Benefits
⚠️ Instant Ammonia Detoxification
Works immediately to neutralise ammonia before it harms fish.
🧪 Cycle-Safe Formula
Does not remove ammonia — it detoxifies it, allowing biological filtration to continue working.
🐟 Reduces Fish Stress & Mortality
Ideal during new tank setups, fish-in cycling, or emergency water quality events.
🔁 Compatible with Water Changes
Can be used alongside partial water changes and other water conditioners.
🌿 Freshwater Safe
Suitable for tropical and coldwater freshwater aquariums.
When Should You Use API Ammo Lock?
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New aquarium setups
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Fish-in cycling
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Sudden ammonia spikes
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Overstocked aquariums
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Filter or power failures
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After adding new fish
If ammonia shows on a test kit, Ammo Lock buys you time and protects your livestock.
Important Testing Note
After dosing Ammo Lock, standard ammonia test kits will still show ammonia readings. This is normal — the ammonia is bound and non-toxic. Always observe fish behaviour and continue regular maintenance.
Why Every Fishkeeper Should Have Ammo Lock
Ammonia is the number one killer of aquarium fish. API Ammo Lock is cheap insurance that can prevent catastrophic losses when things go wrong.
This is not an everyday additive — it’s a critical emergency tool that belongs in every aquarium cabinet.
