There were three fish who died.
No visible signs at all in the fish, it was an overnight (a full 24 hours), no one came into the house while we were gone.
The clowns and hippo tang were new about 3 weeks ago, they came from another hobbiests. The tang who is still kicking is one of those fish, the one who died was my first fish who I've had for a couple months now. It possibly is 4 fish who died, because my royal gramma is still missing
No one was sick at all before I left, no laboured breathing, no acting weird, nothing.
40 gallon cichlid tank;
Pseudotropheus socolofi (albino) x 1
Metriaclima greshakei x 2
Amatitlania nigrofasciata x 20
Pseudotropheus crabro x 1
6" pleco x 1
120 gallon saltwater