Click to expand Tap to zoom Red Lake Earth Diatomaceous Earth with Calcium Bentonite Save Liquid error (product-badge line 32): Computation results in '-Infinity'% $19.99 20lb - $19.99 20lb Title 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Organic certified (OMRI), Food Grade, Codex approved. Can be added to feed in an amount not to exceed 2% of their total diet.