API Ammo Lock Freshwater And Saltwater Aquarium Ammonia Detoxifer
Ammo Lock
API has been an industry leader in fish care, nutrition, treatments, testing and pond products for over 50 years, giving them a keen insight into your aquarium and its needs – making them the clear choice for fish enthusiasts around the world.
If your aquarium water tests positive for toxic ammonia, a partial water change is in order – as is neutralisation of said ammonia. API Ammo Lock is a liquid treatment proven to protect fish cells from ammonia, working instantly to detoxify your aquarium water and remove chlorine and chloramines. Ammo Lock essentially works to lock up ammonia in a non-toxic form until it can be broken down by your tank’s natural biological filter.
| Product Details |
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| Volume: 473ml |
| Usage: Freshwater and saltwater aquariums |
| Function: Ammonia detoxification, chlorine and chloramine removal |
FAQ
How does API Ammo Lock work in an aquarium?
API Ammo Lock works by binding to ammonia in the water, converting it into a non-toxic form that can be safely broken down by the tank’s natural biological filter over time.
Can Ammo Lock be used in both freshwater and saltwater tanks?
Yes, API Ammo Lock is suitable for both freshwater and saltwater aquariums.
Does Ammo Lock remove chlorine and chloramines?
Yes, it effectively removes chlorine and chloramines from the water, providing immediate protection for fish.

Alexandra Clark –
I’ve used Ammo Lock after a water change and noticed my fish stayed calm and active. The ammonia levels dropped quickly and the water felt cleaner. Works well in my 55-gallon freshwater tank.
Victoria Baker –
It’s easy to mix and adds a noticeable improvement in water quality. My fish seem more vibrant since I started using it regularly after testing showed high ammonia levels.
Charles Mackenzie –
Great product for new aquarium owners. I used it after a new tank cycle and the ammonia spike was completely neutralized within hours. No fish stress observed.