The principle
Cycle before you stock. Food-grade IBC only, a backup air pump as life-support, a water test kit that is non-negotiable, and no fish in the system until it is biologically cycled and legal with DGAV/ICNF.
Materials
- 3–5 wooden pallets
- pallet offcuts
- landscape fabric
- heavy soil/compost
- wooden frame
- sealant
Tools
- Pallet crowbar
- circular saw
- hammer
- nails/screws
- staple gun
- drill
Reclaimed from
Warehouse/food-grade pallets (HT-marked safe) + reclaimed fence boards + burlap scraps