These fish are eyeless and possess very long, slender bodies that assistance them navigate their dark underwater home. They’re also quite rare, mainly because it’s believed there are only all-around 200 men and women remaining during the wild. Marbled river stingrays are one of many rarest fish on the earth. https://soboaquariumonline.blogspot.com/2024/08/how-to-install-discus-aquarium-setup.html