Plotosus canius is (very) poisonous and the poison can kill you under circumstances!!!
If you want to keep Plotosus canius, 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
The gray eel-catfish, Plotosus canius, with a maximum length of 1.5 meters and it's plain appearance clearly not an animal to be kept in a normal reef tank. It can be found in estuarine areas, brackish water areas as well as the surrounding seas and feeds on crustaceans, mollusks and fish.
Juveniles are colored dark to blackish and can easily be identified by their body shape which is typical for plotosids as well as their long barbels. They can often be found in tidal pools and close to sea grass accumulations.
The picture has been taken in Thailand by user enterprise and has been submitted to us asking for identification.