Pre-built stocking plan

40-gallon Breeder Reef Stocking Blueprint

40-gallon breeder reef stocking blueprint with mixed coral + 4-5 fish.

Setup

40-gallon breeder (36"×18"×16") with sump, skimmer, return pump

Fish stocking

Invertebrates

Coral progression

Stocking timeline

Week/Phase 1Cycle 5-6 weeks
Week/Phase 2CUC week 6
Week/Phase 3First fish week 7-8
Week/Phase 4Second fish week 10
Week/Phase 5Third fish month 3
Week/Phase 6Coral start month 3 (softies)
Week/Phase 7LPS month 4+
Week/Phase 8SPS year 2
Week/Phase 9Tang last addition year 2+

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.