I use a mix of food for my fish but hikari has always treated me well and my fish love it. I use NLS and I noticed it makes my water cloudy too, only the thera-a for some reason, the Med and cichlid NLS doesn't. I'm actually about to buy a bag of sinking gold and floating. My SA/CA, Africans, natives and bichirs all LOVE it :] I also use omega1