I have had my YWG for over a month now and he was eating and sitting nicely on the sand in various rock caves and such. This past week he has been swimming constantly near the surface and breaching the water. Sometimes just floating on top. He has stopped eating. There are no visible signs of disease or parasites but I did freshwater dip him with some prazi added. He is not breathing hard at all. He just seems really stressed. I have not seen any fish aggression towards him at all. My tank is pretty balanced now and all the fish get along well. I did a water change and checked my parameters and everything seems good, no ammonia, 1.026.etc...none of the other fish shows signs of stress. There is plenty of sand and rocks for a YWG so not sure what is stressing him out? Lack of a pistol shrimp?