Ocean Nutrition Pellets = Cloudy Water?

Has anyone else had this problem? I have been feeding a few of my fish in a 20G QT tank some ocean nutrition pellets (because it is the only thing I can get them to eat) and it is the only tank I have that is cloudy. I have done nothing different in this tank than I have in my other 2 smaller QT tanks I have running except feed them the pellets and all the other tanks have crystal clear water. All tanks have the same filters, same decoration and same rockwork.
 
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