I am heartbroken to announce Octavia has passed.
All equipment has been checked twice over and nothing is malfunctioning. We went to our LFS today to take a water sample in and the readings were as followed-
pH- 8.3
Ammonia-0
Nitrite-0
Nitrate-8
Alkalinity-10
Calcium- 400
Phosphate- 0.1
Salinity- 1.026
We can not for the life of us figure out what happened. No hands had been in the tank with the exception the water change and I scrubbed my hands with a mild soap prior and rinsed insanely well(as always before going into the tank), nothing aerosol is sprayed in the room where we keep the tanks, no new water/salt source and our other tank is completely fine that uses the same water and salt. No new food was introduced.
Is there anything we could have done that I am not aware of? I would hate to repeat the same situation due to a human error that was unknown.
She (who once was removed from the aquarium I think was actually a he) measured 20in tip to tip give or take a little. I did not take any pictures after we pulled her out- I was pretty upset and my sweet husband stepped in to help. I will attach the last two pictures I took after the decline started before her/his passing.