Brain died

[barett82]

I am getting my parameters checked by a professional because I do it and they seem in the normal areas...so ill do that and get numbers.

I have 2 hydra 52s over my 120 9 inches above the water. It was in full light.

I got it from Bayside just like my other one.

Where I am confused is that EVERYTHING else in my tank, including my other brain are doing awesome! And it looked perfect, I went away for the weekend and all that was left was the skeleton. I just don't know what I did wrong if nothing else is sick or dying or anything.