Cart empty

Seachem AmGuard 500ml

Removes ammonia in marine and freshwater
R 358,00

AmGuard safely, rapidly and efficiently removes toxic free ammonia. It is safe to use during tank cycling and is ideal for treating unexpected emergency situations. AmGuard reacts with free ammonia within minutes and does not alter pH. Ammonia can exist in two forms: free and ionized. It is only the free form that is toxic. Traditional ammonia test kits convert all ammonia to free ammonia by raising pH to 12-14; at this pH AmGuard cannot function and thus a flase positibe reading will result. Use Ammonia Altert or MultiTest: Free & Total Ammonia to directly monitor levels of free ammonbia. AmGuard also removes chlorine and chloramines. 


Beginner: Use 1 capful (5ml) for every 200L daily or as needed to reduce ammonia. 

Advanced: If you have an Ammonia Alert that is reading ALERT, then use 1 capful (5ml) for every 400L daily. If it reads ALARM, then use 1 capful for every 200L daily. If it reads TOXIC, then use 1 capful for every 80L daily. 

Expert: If using our MultiTest: Free & Total Ammonia test kit, use 1 capful (5ml) for every 40L to remove 1mg/L (ppm) of free ammonia. Alternatively, you may employ the following formula for a variety of ammonia and water levels: 0.125AV=m (for volume in litres). A=ammonia concentration in mg/L, V=the volume of water being treated and m=the volume of AmGuard to use in mL. 

If water temperature is above 30 degree Celcius, do not use!

500ml treats 4,000 - 40,000L

Opening times

Monday to Friday : 10H00 - 17H30 

Saturday : 09H00 - 13H30

Sunday : 10H00 - 13H00

Public Holidays : 09H00 - 13H00 



Mail to: centurion@dorrypets.co.za
Phone: 012 653 0351
Address:   Edison Center Shop 3
c/o Jacaranda Str & Edison Crescent
Hennops Park, Centurion