ADA Ryuoh Stone

ADA Ryuoh Stone is a premium-grade natural stone curated and distributed by Aqua Design Amano specifically for use in Nature Aquarium-style planted aquariums. Its dramatic jagged ridgelines, deep fissures, and grey body streaked with brown and white mineral lines convey raw geological power, making it a natural choice for bold iwagumi and mountain scape compositions.

The ADA curation process ensures consistent quality and sizing, allowing aquascapers to plan compositions with predictable stone dimensions. Ryuoh Stone's surface texture falls between the smooth angularity of classic Seiryu and the pitted chaos of Dragon Stone, giving compositions a strong, structured look while retaining natural variation.

Ryuoh Stone contains calcium compounds and will moderately raise pH and KH, similar in effect to Seiryu Stone. Aquascapers maintaining soft-water or shrimp tanks should account for this buffering effect by using RO water or conducting more frequent water changes.