Rabbitfish are poisonous. Who knew

[Tetrachloride]

https://www.egyptindependent.com/health-authorities-in-sohag-warn-citizens-against-poisonous-rabbitfish/

The Health Directorate in Sohag, Upper Egypt, warned citizens against buying and eating poisonous rabbit-fish, stressing the need to verify the type of fish before purchasing it whether whole or in the form of slices.

The Undersecretary of the Health Ministry in Sohag Ahmed Mahrous in a Friday statement explained that the poisonous rabbitfish leads to death within six to eight hours after consumption.

....

Mahrous continued that the fish, which is found in the Red and Mediterranean seas, contains the poison Tetrodotoxin, which is considered highly toxic with no cure.

https://en.wikipedia.org/wiki/Rabbitfish

several pictures and more science