If anyone has read one of my last posts, ALL FISH DEAD IN ONE NIGHT, you saw that I did not properly cycle the tank and the fish died. So it has been 3 weeks since the fish died and I have done anything to the tank. I haven’t even looked at it since then. So, I went back to “start the nitrogen cycle” and I brought filter media and rocks from my established tank at home. I got there and took a test and the water was almost perfect. .25 ammonia, 0 nitrite, and 10-20 nitrate. I then took all of the sand out of the tank and put rocks in. I put the established filter media in and also cleaned the tank. After all the sand was stirred up I took another test and got the same results. So, the day the fish died they were dead in the tank for 10 hours(because I didn’t have time to do anything with them). Did the dead fish in the water release ammonia and start the nitrogen cycle? If they did could I add fish to the tank soon with the right pH? Or should I just restart the cycle?