Melastoma Roots on the Surface:

Melastoma Roots come from Melastoma malabathricum, a shrub of river banks and secondary forest that is sustainably collected in Sumatra and Java, Indonesia. Each curated specimen is a thin, branching root ball with the stem attached, a size that suits the nano Botanical Method Aquarium as the main habitat feature. Once submerged, the wood provides surface area for biofilm and interstitial pore space that bettas, rasboras, and gouramis use as refuge in blackwater and biotope aquariums. Our favorite way to use them is when replicating an eroded stream bank, which often contains fine and exposed roots from the surrounding forest.

Essential Details

• Tannin Level: Low
• Tint Color: Brown to yellow
• Durability: High
• Habitat Location: River banks and secondary forest of Sumatra and Java, Indonesia
• Optimal For: Bettas, rasboras, gouramis, and other Southeast Asian fishes, corydoras, Apistogramma
• Use with Caution: No known concerns for standard aquarium inhabitants.
• Size Range: Approximately 6" to 10" root ball with the branch attached; sizes range
• Quantities: 4 pieces per pack. Each piece is selected by hand, and photos show general expectations.

Melastoma Roots for Aquariums & Vivariums

Melastoma Roots are a structural botanical. Once submerged, the textured wood is colonized by bacteria and fungi, and this early biofilm helps feed and cultivate periphyton, a grazing resource for shrimp, snails, and the small fishes of the Botanical Method Aquarium. The fine, entangled roots create refuge sites and territory boundaries for bettas, rasboras, gouramis, corydoras, and Apistogramma.

Boiling the wood on the stovetop for an extended time, or soaking it in a bucket for several days, waterlogs it so it stays in place. Small rocks or cyanoacrylate super glue can anchor a piece that still floats. Over time, the wood darkens as bacteria, algae, biofilm, and fungi encrust it as we would find in nature.

Wood, like seed pods, is less ephemeral than leaf litter, so the roots remain present across multiple additions of leaf litter. Borneo Rasamala Root, a thicker structural wood sourced from West Java, pairs with the finer branching of Melastoma Roots to add both habitat and structure at more than one scale. We recommend layering leaf litter over and between the branches as a recurring input rather than a single addition, and letting older leaves break down into the perpetual substrate. In vivariums and paludariums, boil or bake the roots on low heat to sterilize them before placement. They provide structure on the forest floor alongside leaf litter, and the litter breaks down into detritus that feeds your clean-up crew of springtails and isopods.

Beneath the Leaves: Melastoma malabathricum in the Wild

Melastoma malabathricum is an evergreen shrub that grows 1.5 to 3 meters tall, occasionally reaching 5 meters as a small tree. It is a pioneer species, occurring from sea level into the mountains on river banks and in secondary forest, grassland, and other disturbed ground. It grows on a wide range of soils, and in traditional use its roots yield a pink dye.

Where a stream bank erodes, roots and branches are exposed to the water, and biofilm, fungi, and aquatic invertebrates are quick to colonize the wood. Melastoma Roots can help us replicate an eroded stream bank in the aquarium, with the same sequence of colonization. When we add Melastoma Roots into the aquarium, we replicate the allochthonous inputs that fuel the food webs of aquatic ecosystems around the globe.

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.