Hello everyone im new to here so I apologize if this is the wrong section im posting this thread. So I have started a 10 gallon fresh water aquarium everything was good so far I used 2 platy fish to start the cycle in my the tank. I was told by petco that it takes 2 weeks for the tank to fully cycle and I could start adding new fish, I did research on this and in most cases it says 5-6 weeks when it fully cycles. Anyway my tank is going into 4 weeks a couple days back I did an ammonia test stripe test and the lvl was harmful 3.0, so I did more research about doing a daily 25% water changes to bring it down which I did and today I tested it twice and the ammonia lvl was at 0. So do I have to worry about my tank not cycling or fish dying, I have 15 fish in the tank.