So I had

. ...... about 5 little tetras. A rubber lip placo and a orange flash
I ordered and received from live aquaria a
Humphead glass fish - maybe 2 inches
Spotted climbing perch - 1 1/2" - so far hides and comes out to eat but very cool
I also received 2 danio glow fish - 2 tiny and 1 was 1 inch
I received them all 2 days ago.
Well I got home this morning from work. ALL the tetras are gone and one glow fish gone. No sign of any bodies. One carcas of a glow fish that was probably a tad bigger.
The bigger glow fish is fine.
So my question is what ate them. My inclination is the glass fish. Bigger fish bigger mouth. The spotted climbing perch is described as aggressive but when I did research most people in you tube said that were peaceful. Live aquaria lists the glassfish as peaceful. It did recommend the glassfish be in a group of 3 but I wanted to get one to see if I like it. It was 40 bucks but very active and bad *** looking.
Does have 3 make them less aggressive toward others or is it the perch?
Any insight would help?
Thanks
Stew