Hi everyone, new to the Forum.
Hello, everyone I am new to the forum. I was hoping someone on here might could answer a question of mine. I have an API test kit, and when I did my Nitrate test earlier it smelled of rotten eggs after I drained it. It came back 0ppm, just in case someone ask. I have done multiple tests before, and it is not expired. I was just wondering if someone might know a reason for this or had this happen.