earthstudent;4622715; said:That other ray you posted looks a bit skinny. I know you say it is the angle and it might be but still looks a bit thin to me. What is the dia of the disk and how often and what are you feeding? How long have you had the pup that died? Sorry for all the questions and I am not trying to flame you just trying to help.
I went a long time without a test kit but my LFS tests your water for free so that is what I was doing if I needed a test. I have one now just for convenience.