Information on the Dragon Knifefish

[Josh's Fish]

Found this magnificent looking fish. The Dragon Knifefish. Would really like to set up an aquarium for this, but I can't find any information on it.
What pH levels does it require?
Water temperature?
Potential Size?
Lifespan?
Behaviour? etc.

View attachment 1030141

 

[mattmez]

The ph is 6-8 water temp is 78-82f mine reached 15" lifespan up to 15yrs and it is pretty docile except to small fish it took out 12 of my rasboras )