Rhynchostracion nasus is (very) poisonous and the poison can kill you under circumstances!!!
If you want to keep Rhynchostracion nasus, inform yourself about the poison and its effects before buying. Keep a note with the telephone number of the poison emergency call and all necessary information about the animal next to your aquarium so that you can be helped quickly in an emergency.
The telephone numbers of the poison emergency call can be found here:
Overview Worldwide: eapcct.org
This message appears for poisonous, very poisonous and also animals whose poison can kill you immediately. Every human reacts differently to poisons. Please therefore weigh the risk for yourself AND your environment very carefully, and never act lightly!
Translated with www.DeepL.com/Translator
Rhynchostracion nasus also called the Small nosed boxfish, is distributed to the western Indo Pacific; from Sri Lanka and Sumatra to Fiji, north to the Philippines; Palau and Truk in Micronesia. Also found along the whole nothern coastline of Australia, around rocky and sandy substrates.
The Small nosed boxfish has a cubical, boxy body which is protected by a hard shell (carapace) made up of bony plates with gaps for the various tiny fins, the tail and the mouth. It has no horns. It has a small bump on the 'nose' above the upper lip and a ridge along the middle of the back. The fish has a pattern of hexagons with brown spots.
It is said to be toxic. It is probably one of the species that secretes a powerful toxin on the skin (called ostracitoxin). This toxin is poisonous to other fishes and can even kill the boxfish itself if it is confined in an aquarium. Thus they are not recommended for aquariums.