FOCUSPET Spirulina Veggie Algae Wafers Catfish Tropical Bulk Fish Food, 0.5lbs Contain rich Spirulina in plant components. Pie shape is sinking feed, was easy softening, but also retain original shape. Freshwater and saltwater fish can be used. Net weight: 1/2lb =200g For Benthic shaped type, rat fish, Veggie Algae fish.