API stress coat may help. It looks like he is just stressed.The tank has been running for nearly a year and water quality is good. It's a 75 Gallon. He's not full grown he's not even as long as the side of the tank. There's only two other fish and a turtle. The water is green and foggy because I need new lights but as far as water quality goes everything is where it should be. I just got him a couple of days ago though so he might just be settling in.
Yeah turtles are filthy i knew that when I decided to buy fish so I've taken appropriate measures to minimize her filth. I had to switch from gravel to sand because even with gravel vacuuming there was too much filth under the rocks to keep the nitrate low but now that there is sand nitrate remains below 40 nitrite is 0 hardness 300 chlorine 0 alkalinity 0 (but it's not effectingPH much) and PH is 7.2 Ammonia is 0 but sometimes goes up to .5. I'm going to get another two filters for itthoughHonestly, with a turtle in there it is very hard to maintain water quality, I would double check your water parameters.