Who Gives A Fish Forums

I've got a 10-gallon cycled tank, heated, with a HOB filter and seven species of live plants. My water parameters are spot on: pH 8, always steady, Ammonia 0 ppm, Nitrites 0 ppm, and Nitrates around 1 ppm (basically undetectable).

About a week ago, I thought my female betta, Cheesecake, was ...