Hi, I need some advice. This is my first betta fish and I believe he has popeye in both eyes. It's not super bad right now, but I did notice his eyes seem a little bit more bulgy and they were originally all black, but now the part around his pupil is lighter, like a gray color. I highly doubt it's due to ammonia/nitrates because I tested the water and I have a cycled tank. However, the water was cloudy for about 2 weeks, but I read online that usually it's just a bacterial bloom and it can clear itself within 2 weeks. It'd never been cloudy before, either. Today when I came back, I found my betta really pale and noticed his eyes seemed different and he was kinda bumping into things I did a large water change and he doesn't seem pale anymore and his eyes seem a little better, thankfully. He's still swimming around like normal, but now I'm just wondering what to do about his eyes and what the cause may be. Things that changed/may have caused this: 1. Right before the water started getting cloudy (like I said, it was NEVER cloudy before), I bought him some new ornaments from Petco because I wanted to decorate his tank and give him more stuff to look at... But a few days after I added them in, the water started getting cloudy and would come back after I did water changes. Could this be the culprit? I also took them out when changing the water today, so if they were the cause I'll know in a few days depending on whether or not the water gets cloudy again today. I'm just worried so I wanted to know if anyone has experienced this before and could provide some insight too. 2. I also started giving him frozen foods. I fed him SFBB bloodworms for the first time 2 days ago, and then read online that it's not the best brand because the quality is quite often lacking. (I went out and bought Omega One bloodworms instead, but haven't fed him those yet.) I also fed him Omega One spirulina brine shrimp yesterday. Do you think he could have a parasite or have gotten sick from these? 3. Or could it just be a bacterial bloom/infection? How can these be prevented? I do 50% water change every week and roughly clean the gravel with a turkey baster, but I think I could've been more thorough in the gravel cleaning... And what would the treatment usually be for popeye? His eye definitely seems much better now, over the course of me typing this out, but it's still definitely a bigger than normal. TL;DR: Betta fish has popeye and was super pale, but seems much better with large water change I immediately did. I also took out the new Petco fish tank decorations. Water has been cloudy for about 2 weeks (started right after I put in the Petco decorations) so could that be the cause? Or new frozen foods? Or if it was just a bacterial bloom, how to prevent in the future? And of course how to treat his popeye?