My black moor had fluid build up behind his eyes. They aren't extra buldgy and don't look like pop eye too me. In the store the fish with pop eye would have one eye that was protruding. His eyes seem the same size that they have always been. He is turning orange so its hard to tell from a photo. He naturally has protruding eyes so could it still be pop eye and just showing up differently? A week ago I tried Tetracycline Tablets. I didn't take out my carbon though. It said you didn't have to if it was more then 6 days old. I noticed Maracyn treats something called swollen eyes so I was thinking of trying that with the carbon out. He has a tendency to bump his eyes on everything but has been like that since I got him about 2 years ago. In the picture the whole orange part is not swollen or filled with fluid. It's flush with the rest of his eye and started turning orange way before fluid appeared. His belly is also turning orange and is getting a whole orange tint. I heard thats normal though. In the bottom picture you can see that there is a tiny bit that isn't flush.