Aquaponics
A closed-loop hybrid that couples aquaculture (fish) with hydroponics. Fish waste feeds nitrifying bacteria that convert ammonia into plant- available nitrate; plants then filter the water as it returns to the fish tank. The plants grow in a hydroponic sub-system — most often media beds, NFT, or raft culture.
Specs
- Setup cost
- $400–2500
- Monthly op cost
- $20–80
- Footprint
- 8–50 sqft
- Typical draw
- 80 W (peak 200 W)
Strengths
- Closed loop nutrient recycling
- Dual output of vegetables and fish
- Reduces synthetic nutrient input
- Pairs with existing aquaculture infrastructure
Weaknesses
- Requires managing three living systems plants fish bacteria
- Longer startup before nitrifying bacteria establish
- Nutrient balance constrained by fish diet
- Higher electricity demand for aeration and pumping
Best for
Linked names lead to a full hydroponic guide for that plant. Unlinked names will activate as those plants are added.
Compatible plant categories
- Leafy Greens
- Herbs
- Fruiting
Required equipment
- Fish tank
- Grow beds or hydroponic sub system
- Biofilter
- Solids filter
- Water pump
- Air pump for fish tank
- Water test kit
- Ph meter
- Ec meter
Sources
Data on this page is drawn from the following extension and research sources.
- UF IFAS Extension — Aquaponics Resources (accessed 2026-04-22)
- Penn State Extension — Aquaponics (accessed 2026-04-22)