Ulin Pods | Eusideroxylon zwageri

Product Description: Sustainably sourced Ulin Pods (Eusideroxylon zwageri) from the dense lowland rainforests of Indonesia. These woody seed pods, produced by the Bornean Ironwood Tree, are naturally durable and break down slowly in the aquarium, contributing tannins, humic substances, and organic material that support microbial life. Their warm tan coloration contrasts beautifully against the darker detritus-rich substrates of Botanical Method Aquariums. In botanical aquariums, Ulin Pods provide a robust surface for biofilms and fungal growth, which in turn feed shrimp, snails, and other detritivores. Their curled, woody forms create microhabitats that enrich the substrate with detritus over time, offering foraging areas for bottom-dwellers like Corydoras and Otocinclus. When positioned at an angle, they can even serve as spawning shelters for cave-breeding species such as Parosphromenus, Betta albimarginata, and Betta burdigala. In bioactive vivariums, Ulin Pods act as long-lasting s