Ethically Sourced from Colombia Vivarium safe: Boiled, dried and ready to go out of the bag! The Bio Dude Colombian Leaf Litter. This pre-boiled, baked and dried leaf litter is harvested ethically from the deep Colombian rainforest. Guaranteed to be free of any nasties and tannin rich, these larger leaves are a great source of nutrition for your soils, clean up crew and with their larger size make a great decorative leaf. Mango leaves are a great tannin enhancer and are a valuable biodegradable to utilize in aquariums, terrariums and as a food source for detrivores. 20 count