New Life Spectrum® Probiotix® Probiotic Enhanced Food Improves Digestion And Water Quality Through Our Own Blend Of Probiotic Cultures. Probiotix Works In Three Ways To Improve Your Fish’S Health: Improved Nutrients By Your Fish, Cleaner Phosphorus-Reduced Waste, And Cleaner Water As The Probiotic-Laden Waste Gets Into The Filters. It’S A Virtuous Cycle.