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Re: Warning about Seachem Ammonia Alert
There is always, in all tanks (provided you aren't using chemicals) a combination of toxic "free" ammonia (NH3) and non-toxic ammonium (NH4+). The amount depends on water temperature, total level of ammonia, and pH. It's a calculation that can be used to determine weather you would be prone to having toxic ammonia in your tank or if you don't really have to worry. For example, if you have a pH of 7.5, a total ammonia of 1ppm, and are running the tank at 77oF (25oC) then you will have a total of 0.0177ppm of toxic ammonia in your tank. 0.02ppm for any length of time in your tank is harmful to the fish, so this is getting there. However, if you keep the same 1ppm of total ammonia, and leave the temperature t 77oF (25oC), but have a pH of 7.0, then you will only have 0.0057ppm of toxic ammonia in your tank (i.e. it's pretty safe for the fish). In fact, in order for it to become harmful at 0.02ppm for a tank with that 7.0pH and temp, you would have to have a total ammonia count of around 3.6ppm. Hence why people with high pH levels should watch out for total ammonia spikes over people with lower pH. And no, hopefully you won't see it work, because if you do then you have an ammonia problem on your hands which I wouldn't wish on anyone... or their fish.
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