I have a young Motoro Stingray. He eat veryl well and even eats out of my hand. I feed him shrimp that i get from the grocery store. I get raw, peeled shrimp. Even though he eats every day he is getting very skinny. His head is starting to sink in. None of the fish stores near me have any real clue on what the problem could be. One did tell me about this forum and said it is probably my best chance at getting and answer. So if any one has any idea please throw them my way.