Dragon Stone — Natural Ohko Rock

The signature iwagumi rock — warm clay-brown Ohko stone with the pitted, scale-like texture that earned it the dragon name. Plant moss straight into its pockets and it becomes a living boulder.

• Inert clay stone. Won't meaningfully shift pH or hardness — safe for shrimp and soft-water fish.
• Plantable texture. The pits hold substrate and moss — Fissidens on dragon stone is a classic.
• Three sizes. 250 g accents, 500 g small layouts, 1 kg feature stones.
• Rinse before use. Dust from quarrying washes off in a colander — no soaking needed.