I have a 55 gallon tank that housed a samll (under 2 inch, not counting finnage) Niger Trigger, a small Hawaiian Bluespot Puffer and a large Lunare Wrasse. Everyone had been getting along, eating well together.
Last night, I went to feed and the puffer was dead. It had not been ill. It looked like a miniature great white shark had taken a huge bite out of its back. To be honest, I have never seen anything quite like this. It was not post death predation by a cleanup crew as there is NO
cleanup crew. No crabs, no shrimp.....
The wrasse would have been big enough, but I did not think they did this type of thing. The Niger just did not seem to have the size to it, plus, they are not known for being super aggressive (yes, I know that is as far as triggers are concerned)
Any input as to who did this?