Ammonia at 0.25-1 ppm?

Its weird lol that i tested and its roughly ard 0.25-1ppm uncycled tank . should i juz leave it or change my anti ammonia rocks?? got 3 platies and 1 swordtail in a 7 US gallon tank they sure are strong fishies. What do u guys think? Answer below on what i should do next . And does live plants always die?? I have 1 thats almost half dead should i change it ? or let it be 1st?