These fish are tropical, but that doesn’t suggest they prefer saltwater. Rather, they are now living in the rivers and ponds scattered throughout Papua New Guinea. These fish are omnivorous and take in rather a diverse diet regime. Marbled river stingrays are one of the rarest fish on the globe. https://aquariumonlinestore.tech.blog/2025/01/16/what-should-be-your-first-steps-to-set-up-an-aquarium/