TGIAC 2026 will be contested across two categories, and you may enter one scape in each.
Nature Aquarium
Naturalistic underwater landscapes that recreate a slice of nature, with layered planting, organic hardscape, and a strong sense of depth and atmosphere.
Iwagumi
The classic stone-led layout. A small number of carefully placed rocks, restrained planting, and balance above all. Simple to describe, hard to master.
Ready to take part in TGIAC 2026?