Ammo Lock from API works instantly detoxifying ammonia and also eliminates chlorine and chloramines from the aquarium water. Ammonia is locked up in a non toxic form until the nitrifying bacteria can harmlessly break this down.
API Ammo Lock harmlessly converts chlorine to a harmless salt. Chloramine which is a combination of both ammonia and also chlorine is removed in a two step process by firstly eliminating the chlorine followed by the Ammo Lock immediately detoxifing the residual ammonia.

Available in the following sizes

30ml treats 227 litres
118ml treats 893 litres
237ml treats 1,794 litres

Directions for use

For both freshwater and salt water aquariums of 38 litres or more add 1 teaspoon 5ml of AMMOLOCK for each 38 litre of water. For smaller aquariums up to 19 litres, add 1/2 teaspoon 2.5ml of AMMO LOCK to the aquarium water. Continue to add API ammo lock every 2 days until ammonia is not detected. You will need an ammonia test kit to confirm this.
If you are still getting ammonia readings after 7 days, then this does indicate possible overfeeding, overstocking or inadequate biological filtration. Performing a partial water change and reducing feeding should help rectify the balance. Also make sure you never rinse the filter sponges under tap water as this kills off any beneficial bacteria present.