These fish are tropical, but that doesn’t suggest they like saltwater. As an alternative, they reside in the rivers and ponds scattered across Papua New Guinea. These fish are omnivorous and eat quite a various diet program. Marbled river stingrays are among the list of rarest fish on the planet. https://medium.com/@AquariumOnlineStore/what-should-be-your-first-steps-to-set-up-an-aquarium-28c5c23d2361