The fish that have vanished were there for various lengths of time. There are no predatory fish in my tank, I have:
Yellow Tang
Sailfin Tang
Madarin Goby
Pearly Jawfish
Firefish Goby
Candied Hogfish
8 Green Chromis (started with 18)
Tomato Clown
3 Peppermint shrimp
The fish showed no signs of sickness, I have great water quality (thriving SPS).
I have checked the tank at night and not seen anything nasty.
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