I did a 50% water change last night.
All other fish in the QT tank are fine and eating well. I have the Midas blenny, a lawn mower blenny, royal gramma, yellow Watchmen goby and a scooter blenny in a 20 gallon QT tank with a hang on the back filter, a Jaebao powerhead agitating the surface, and a Sponge Filter / bubbler from Amazon
copper, 2.14
Salinity 1.024
Temperature 77.7