New Life Spectrum Thera+A Sinking Pellets combine the high-density Spectrum Nutrition Formula fortified with extra Allicin complex (garlic) and extra nutrients and oils for a food that’s great for stressed and/or newly acquired or introduced fish. The extra attractants and nutrients mean fish resist stress better. 1mm - 1.5mm pellets. Most pellets will sink (high-density). 600 grams. 21.5 oz.