
Iwagumi
Inspiration: Japanese rock gardens (karesansui) Features:
- Only rocks as a structural element (no wood)
- Carpet of small plants (HC Cuba, Eleocharis, Glossostigma)
- Very minimalist → every detail counts
- The rocks are called Oyaishi (main), Fukuishi (secondary), Soeishi (complementary), and Suteishi (sacrificial stones)
- Odd-number arrangement (an odd number of main rocks)
Parameters: High light, CO2, active substrate, soft water — technically very demanding.