Mango Leaves on the Surface: Our Mango Leaves are as valuable a leaf litter for the botanical method aquarium as guava, jackfruit, or catappa. Sourced from North America and Indonesia, they are long and slender rather than round, breaking the uniformity of a typical leaf litter bed. Their shape allows us to build a dynamic habitat that shrimp, snails, and fish can forage within and shelter beneath. When mango leaves are allowed to fully break down into beneficial detritus, they passively release tannins, humic substances, and a deep amber tint that is characteristic of with blackwater habitats, making them well-suited for the botanical method, blackwater, and biotope aquarium and vivarium. Essential Details Tannin Level: Moderate Tint Color: Deep amber Durability: Breaks down in 1-2 months. Softens gradually before thinning to a delicate leaf skeleton in the litter bed. Habitat Location: North America and Indonesia Optimal For: Betta fish, corydoras, plecos, otocinclus, shrimp, snails, dart frogs Use with Caution: No known concerns for standard aquarium inhabitants. Size Range: 6 to 12 inches long and 1 to 2 inches wide Quantities: 20 count Mango Leaves per pack Mango Leaves for Aquariums & Vivariums In the aquarium, Mango Leaves begin building a habitat the moment they saturate and settle into the litter bed. Their long, slender shape layers loosely rather than lying flat, creating refuge sites and foraging territory. Shrimp, snails, and rasping fish can graze on the biofilms that colonize the leaf surface, and the curled shape that develops as the leaf softens gives fry and small invertebrates cover to seek refuge in. Mango Leaves are a documented source of polyphenols, including mangiferin and quercetin-derived flavonols. As the leaf breaks down, these compounds passively release into the water column, where they may support the microbial food web and contribute to the organic chemistry of the water column. This is a process-driven contribution that develops over the entire decomposition cycle, not at the moment of introduction. The longer the leaf remains in the ecosystem, the more fully those compounds leech into the water. In the bioactive vivarium, Mango Leaves help build a carbon-rich litter layer that springtails, isopods, and other cleanup crew members work through as they process waste and develop the substrate microbiome. Their curved shape holds its position well through routine maintenance and promotes refuge sites for dart frogs and small invertebrates. Layering them several leaves deep, then adding more as the lower litter breaks down into detritus, cultivates a vivarium floor that functions much like the wild forest floors these animals call home. Beneath the Leaves: Mangifera indica in the Wild The mango is a long-lived canopy tree, and across the tropics its leaves fall steadily onto the forest floor, helping contribute to the tannin-stained waters that pool beneath it. They accumulate alongside other fallen canopy materials, softening and colonizing with fungi and bacteria finally breaking down into beneficial detritus that feeds the microbial food web. Fish, shrimp, and amphibians move through this matrix of botanical materials to forage, shelter, and spawn within it. Adding these leaves to the aquarium or vivarium connects it to that same cycle of accumulation and decay. Mother Nature leads the way. Sustainability Note: This product's packaging is home compostable. Just like the botanicals inside, it will break down naturally and return to the soil—because what supports your ecosystem should minimally impact our planet. Not for human consumption. Preparation required. This is a natural product—variation in color, shape, and texture is expected.