Spirulina Calcium Blocks – Mineral & Nutrition Support for Shrimp & Snails. Support health, growth, and natural feeding behavior with our Spirulina-Infused Calcium Blocks. Specially formulated for shrimp, snails, and other invertebrates, these blocks combine essential calcium for strong shells and exoskeletons with spirulina, a nutrient-rich algae that enhances vitality, immune function, and natural grazing activity.
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