Seachem AmGuard™ – Fast-Acting Ammonia Detoxifier for Emergency & Daily Use

Neutralize dangerous ammonia levels in minutes — before they harm your fish.
Seachem AmGuard™ is a powerful, fast-acting solution that detoxifies toxic free ammonia and keeps your aquarium safe during emergencies and routine maintenance.

Key Benefits:

• Rapidly detoxifies harmful free ammonia
• Works within minutes for immediate protection
• Long-lasting effect — active for up to 72 hours
• Safe to use during tank cycling
• Does not affect pH or water balance
• Also removes chlorine and chloramine

Ammonia spikes are one of the most dangerous and common issues in aquariums — especially in new tanks or after overfeeding or stock increases. Toxic free ammonia can quickly stress or kill fish if not treated immediately. AmGuard™ neutralizes this threat, giving your biofilter time to stabilize and recover.

This Product is Perfect for:

✔ Emergency ammonia spikes
✔ New tank cycling
✔ Overcrowded or heavily stocked aquariums
✔ Routine water quality protection

AmGuard™ binds toxic free ammonia and converts it into a safe, non-toxic form that can be naturally removed by your aquarium’s biological filtration system. Unlike some treatments, it remains active for up to 72 hours, providing extended protection.

For ongoing ammonia control and biological balance, pair with:

• Stability® – supports beneficial bacteria
• Matrix™ – enhances biological filtration

If you want fast, reliable protection against ammonia spikes, AmGuard™ is an essential safeguard for keeping your fish safe and your aquarium stable.