... 2.Shape:3x3mm 3.packing:20-40kg/bag feed ulva is the marine red algae, marine plants ... processed. Has a very high value of food and feed. Incomparable land plants containing iodine, potassium, calcium, manganese ... other mineral elements. Rich in vitamins A, B1, B2, C, amino acids, proteins, such as algin acid ... and retaining bacteria. Add the fish and shrimp feed additive Laver powder to do. On fish ...