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Naturally Fermented for Enhanced Tannin Release Premium fermented Catappa leaves (Terminalia catappa) carefully selected, naturally aged, and fermented to provide a richer source of tannins and humic substances for freshwater aquariums. Ideal for betta fish, shrimp tanks, blackwater aquariums, discus, apistogramma, rasboras, tetras, and other soft-water species. The fermentation process helps accelerate tannin release while maintaining the natural benefits sought by aquarium hobbyists. Catapp...