Pre-built stocking plan

20-gallon Nano Reef Stocking Blueprint

Complete 20-gallon AIO nano reef stocking blueprint with timeline.

Setup

20-gallon AIO (Waterbox AIO 20, Innovative Marine Fusion Pro 20, Red Sea Reefer 170)

Fish stocking

Invertebrates

Coral progression

Stocking timeline

Week/Phase 1Cycle 4-6 weeks
Week/Phase 2CUC week 5
Week/Phase 3Clown pair week 6
Week/Phase 4Goby + pistol month 2
Week/Phase 5Soft coral month 3
Week/Phase 6LPS month 4-6
Week/Phase 7SPS only after 6+ months stable

Tools for this build

Use the stocking calculator to verify, the water change calc for ongoing maintenance, and the maintenance schedule generator for printable weekly tasks.

More blueprints

Browse the full blueprint library for other tank sizes + types.