Not to worry! Your AmGuard is working just fine. Like Prime, AmGuard works by binding ammonia into a nontoxic form. This nontoxic form of ammonia is still available to bacteria colonies so the use of AmGuard will not interfere with cycling. A "Total Ammonia" test will still read this detoxified form of ammonia as if it were toxic NH3, giving you a "false positive" for ammonia. If you would like to ensure that all the ammonia in the tank is detoxified, we recommend using the Ammonia Alert badge!
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