Table Greens runs a closed-loop aquaponics system of grow troughs, trout-style raceways and a natural pond. Fish waste feeds the vegetables, the plants clean the water, and five aquatic species are raised alongside the crops with no synthetic inputs.
Raised media-bed grow troughs where fish water feeds directly into plant root zones. Our highest-productivity vegetable production area.
Long, narrow channels with continuous flow - the primary fish grow-out system for tilapia and catfish at scale.
Semi-managed natural pond for crawfish, larger catfish, and waterfowl. Aerated and managed for water quality but otherwise natural.
Natural pond. Seasonal harvest April-June. Trap-harvested and sold fresh at the farm stand.
Raceways and pond margins. Similar management to crawfish. Harvest in late summer.
Raceways and pond. Hardy, fast-growing. 12-18 months to harvest weight of 1-2 lbs.
Primary raceway fish. 6-9 months to harvest. Extremely productive nutrient producers for grow troughs.
Advanced system. Brackish/cooler water raceway. 18-24 months to harvest. Exceptional table fish.
Fish consume feed and produce ammonia-rich waste into the water.
Beneficial bacteria convert ammonia to nitrite, then to plant-available nitrate.
Grow trough plants absorb nitrates as fertilizer, pulling them from the water.
Filtered, plant-cleaned water returns to the fish tank. The cycle continues.
In a natural pond, yes: crawfish coexist well with catfish and tilapia. In raceways, we keep them separate since crawfish can stress and injure fish during molting periods. Our crawfish live in the semi-managed natural pond, which is aerated with a 2 HP paddle aerator, while tilapia and catfish are grown out in the raceways at higher densities.
Our four grow troughs produce approximately 300-400 pounds of vegetables per year, including leafy greens, herbs, tomatoes and peppers, in addition to the fish yield. The troughs are raised media beds of expanded clay and lava rock on a 15 minutes on, 45 minutes off flood cycle, which is our highest-productivity vegetable growing area.
No synthetic chemicals. We use pH Up (potassium hydroxide) and pH Down (phosphoric acid) in very small amounts when needed, and the biology handles everything else. Beneficial bacteria convert fish waste from ammonia to nitrite and then to nitrate, and the plants take up that nitrate, which is what keeps the water clean for the fish.
Crawfish are available seasonally in spring, and other fish by request and availability. Contact us to get on the list for fresh catfish, tilapia fillets and shrimp when harvest is ready; freshwater prawn are harvested in late summer. Table Greens is still in development and not yet open to visitors, so the list is the best way to hear about each harvest.
It depends on the species. Tilapia, our primary raceway fish, take 6-9 months. Catfish take 12-18 months to reach a harvest weight of 1-2 lbs, and flounder, raised in a cooler brackish raceway, take 18-24 months. Crawfish are trap-harvested from the pond each spring, from April to June, and freshwater prawn are harvested in late summer.
Grow troughs are raised media beds, 4 feet wide, 2 feet deep and 12-20 feet long, where fish water feeds plant roots directly. Trout-style raceways, 4 by 2 by 20 feet with continuous flow, are the main grow-out system for tilapia and catfish. The natural pond is semi-managed for crawfish, larger catfish and waterfowl, and is aerated but otherwise natural.