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Old 07/25/2017, 03:37 PM   #7
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Join Date: Jul 2004
Location: Great Falls, MT
Posts: 1,404
yeah, .25 or less is fine for the API test kit.. it's not quite there, it's registering ammonia, but it doesn't go down low enough. anything under .1 is normal, which is probably where you are at. Ammonia can also be in a non-toxic state and register too high on test kits in certain circumstances and still be safe. If it goes above .25 then you need to take action.

300 gallon 8ft long, 2x xf250 gyre, reef octopus 250-int - work in progress
Aquarist since 1986
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