They prefer shallow and shady habitats with dense addresses and lots of vegetation. They aren’t as well picky with their environment but need the h2o to become acidic, heat, and comfortable to stay healthier. The Devil Fish is known for its large, triangular pectoral fins and distinct horn-like cephalic fins https://www.slideshare.net/slideshow/4-tips-for-buying-a-fish-tank-online-for-sale/274219941