You likely have less than 40 gallons of water due to rock/sand,etc....
As such your initial ammonia results were likely higher than 2ppm.. not to mention that the bottle of bacteria may contain some ammonia,etc...
Its also only been 3 days and that kind of bottled bacteria rarely works as advertised..
Just relax/wait..
Don't add any more ammonia..
Your tank is cycling.. Now you just wait..
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