Seachem AmGuard

AmGuard™ safely, rapidly and efficiently detoxifies toxic free ammonia. It is safe to use during tank cycling and is ideal for treating emergency situations. AmGuard™ is the strongest liquid ammonia binder on the market. It works within minutes to detoxify free ammonia, and it doesn’t degrade for nearly 72 hours. That’s at least twice as long as our competitors’ products. Unlike competing products, AmGuard™ converts it into a safe, non-toxic form that is readily removed by the tank’s biofilter. It does not alter pH.

AmGuard also detoxifies chlorine and chloramines. 

Use 1 capful (5 mL) for every 200 L daily or as needed to reduce ammonia.
If water temperature is above 30 °C do not use.