Spirulina algal wafers are a nutrient‑dense, plant‑based supplement made from spirulina—an intensely rich blue‑green microalga celebrated for its high protein content, vitamins, and trace minerals. Many isopods, especially omnivorous and algivorous species like Porcellio, Armadillidium, Cubaris, and other tropical forms, readily graze on softened wafers. Spirulina provides a clean boost of plant proteins, B‑vitamins, and antioxidants, supporting steady growth, colour vibrancy, and overall colony condition. Because the wafers break down slowly and cleanly, they’re an easy way to diversify plant matter in the diet without risking substrate spoilage, encouraging consistent feeding across all life stages.