The classic IBC
aquaponics rig.
A cut-down 275-gallon IBC is one of the most common DIY entries into aquaponics. Here is how the usual build works. Partner suppliers in our network may offer washed totes suited to this kind of project.
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The standard build
The usual approach is to cut the bottle horizontally a short way down from the top. The larger lower section becomes the fish tank; the smaller top section is turned upside down and set on the cage above it as a media grow bed.
Typical parts
- A used tote that held food-grade or non-hazardous contents, cleaned thoroughly
- Bulkhead fitting for the grow-bed drain (a bell siphon is a common option)
- Return line from the pump to the grow bed
- Submersible pump sized for the tank
- Grow media (expanded clay or lava rock) or net cups
- Fish suited to your climate and goals
- Plants: leafy greens are the easiest to start with
- A covered or indoor space where winters are cold
Why people use a tote
The HDPE bottle holds water well, and the steel cage doubles as the frame for the grow bed and gives you mounting points for lighting, netting and trellises.
Ask about prior contents
Fish and food plants are sensitive to residues, so ask the supplier what the tote held before. Choose one that held food-grade or non-hazardous contents, clean it well, and test the water before stocking fish.