Feed your pond fish MICROBE-LIFT/LEGACY Summer Staple With Montmorillonite Clay when temperatures are above 68°F (20°C). Alternate feeding two supplemental foods four days per week. Due to its lower protein content, you can also alternate with MICROBE-LIFT/Legacy Cold Weather Food during colder weather. Montmorillonite Clay provides added minerals, which help stimulate immunity against viruses commonly found in pond environments and also acts as a toxin binder by neutralizing metabolic toxins. Additional quantities of vitamins are also blended into this food.