My old friend said the same thing but said it would be a lot of money on his end to just test a theory. Honestly aliexpress is a hot zone for cheap 220v stuff like that so I say try it. Though you should go UL Listed / American.
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Potassium carbonate that is fish friendly that can also be used as pH up. I never thought I needed it, but itâs another source of K for flower. Interesting.
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I would highly recommend growing your plants and fish separately. You can still utilize your facility for both. Grow good fish next to good plants, once you mix the 2 your problems increase 10 fold. Just my 2 cents but I have excellent experience in killing fish on accident.
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A culture of duckweed (Lemna minor) is set up on the surface of the renewal water collection basin, duckweed has about 35% protein and is very suitable for Tilapia. The solids extracted from the water thanks to the vortex filter go into the settling tank and are then recovered to feed a farm of Hermetia Illucens which, after drying of the larvae, are distributed to the fish in addition to their vegetable diet. The compost tea is reinjected into the circuit in drip to compensate for the deficiency of trace elements in the crops.
A unit of reproduction and production of fry will be integrated into the system. The breeding tanks therefore have males and females. Their reproduction leads to the production of larvae which after resorption of the yolk sac are harvested. These fry are then transferred to nursery tanks until they reach the desired weight for transfer to the grow-out tanks. The weight of 1 g is reached in 25-30 days.
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Half calcium carbonate, half potassium carbonate as pH up for when the beneficials drive the pH down. Iâll have to try that if Iâm feeling froggy in the spring.
@Torgull Compost seems messy. Youâre going to pull the solids out somehow. (Shameless plug) Why not use a soluble source of humus and micronutrients in a product like AGT-50 fulvic mineral complex?
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The information comes from an aquaponic greenhouse located in Marla, a small village of 45 inhabitants located in Mafate (1650 meters altitude) in the heart of Reunion Island.
The reason is simple 3 hours of hiking to get there, there is no electricity either!
Their goals: LOW TEK
- No discharges of polluting effluents because the hydraulic circuit is closed
- Optimization of water management from a quantitative (low water renewal: less than 5%) and qualitative point of view (control of pH, O2, minerals âŠ)
- Promotion of semi-arid geographical areas
- Valorization of fish waste
- No use of chemicals for the treatment of plants (pesticides, herbicides, etc.).
The main challenge is to find the right balance between the fish population, the food provided, the bacterial population and the cultivated vegetation. At the start of the project, we worked on a first pilot circuit to validate the feasibility of this technique, which is Aquaponics in RĂ©union.
Max 30kg fish / meter cube water
In view of the good results obtained after the technical feasibility study, an experimental circuit was built in 2012 to test this technique more intensively. The results obtained are very promising and make it possible to validate the technique on a production of Tilapia combined with a production of salads and other plants (basil and other aromatic plants).
It is in fact an ecosystem in which three types of living organisms intervene in an ecological cycle:
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Fish whose excreta, rich in nitrogen (ammonium) and phosphorus, are the source of nutrients for plants, the food provided to fish enriches the environment in the form of fertilizer.
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Aerobic bacteria which transform organic matter such as ammonia / ammonium into nitrites and then into nitrates, the latter being assimilated by plants in mineral form. They act as a biological filter since fish excretions are toxic to fish (blocking hemoglobin and therefore respiration) at excessively high concentrations. There is a ratio of 100 in toxicity between the different nitrogen compounds, toxic thresholds: of NH4 + / NH3 <1.
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The cultivated plants purify the water of the breeding by the assimilation of the roots, they use nutrients in mineral form to grow.
Constraints, energy, environmental, and due to the isolation of the Cirque de Mafate, led me to take up several challenges.
Circulate 50 m3 of water per hour with 60 watts produced by photovoltaic energy 24 hours a day.
Find solutions to produce fish feed on site so as not to have to helicopter industrial feed.
Collect enough rainwater to allow additional water due to evaporation and consumption of crops
Control the reproduction of broodstock on site, so as not to have to helicopter fry from the coast.
Design the entire device to measure, compact, in wood, above ground and completely removable for the best possible landscape insertion.
AQUAPONIC ENERGY SYSTEM
The system is supplied with energy by a photovoltaic power station of 1200 Wp with a battery park of 700Ah having an autonomy of 3 days without sun. The house pumps (Airlift) work with a 90W compressor producing 6 m3 / H. The water is heated by a solar thermosyphon system with thermostat and low consumption solenoid valves.
FEEDING TILAPIA (OREOCHROMIS NILOTICUS)
A culture of duckweed (Lemna minor) is set up on the surface of the renewal water collection basin, duckweed has about 35% protein and is very suitable for Tilapia. The solids extracted from the water thanks to the vortex filter go into the settling tank and are then recovered to feed a farm of Hermetia Illucens which, after drying of the larvae, are distributed to the fish in addition to their vegetable diet. The compost tea is reinjected into the circuit in drip to compensate for the deficiency of trace elements in the crops.
WATER SUPPLY OF THE AQUAPONIC SYSTEM
A 40 m3 pool for collecting rainwater from roofs serves as a reserve for system upgrades (less than 5% per day).
REPRODUCTION OF SPENDERS & NURSERY
A fry reproduction and production unit will be integrated into the system. The breeding tanks therefore have males and females. Their reproduction leads to the production of larvae which after resorption of the yolk sac are harvested. These fry are then transferred to nursery tanks until they reach the desired weight for transfer to the grow-out tanks. The weight of 1 g is reached in 25-30 days.
CONSTRUCTION OF THE DEVICE
All the different tanks will have a Cryptomeria framework (use of local wood) and the interior waterproofing will be obtained using polyester. Everything will be built above ground and completely removable on a total area of ââ130 m2.
It must change you, aquaponics garages in New York.
Their system works well! low cost, low tek and in conditions more unusual than the current standard.
Autonomy is a good thing!
Why pay for industrial products in this kind of system? It goes against the basic principle.
Homemade Fulvic Acid! if necessary.
The day when we no longer find the complex for sale, how do we do it?
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That is awesome. Thank you for dropping knowledge. I am going to watch the video after work tonight.
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Knowledge is made to be shared!
Glad it could help.
You can put ENG subtitles with youtube, even if the translation is not perfect.
The address of the site, https://aquaponiereunion.re/ uses google trad or other, is that French. I havenât put everything here.
The 3 best Aquaponic systems according to the FAO - By Aquaponie RĂ©union
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It doesnât seeem like it would be that hard to cultivate bugs on a tropical island. Cochroaches are the fastest reproducing protein source, followed by meal worms. And if you think that is grossâŠthere is an old homesteader trick for making chicken feed by cultivating maggots on shit. Chickens love them, fish would too.
On the farm, they used to put roadkill in a bucket with holes drilled all through it. The chickens would reach their beaks in to eat the maggots.
Ozone creates 03. Then dissipates back to o2. BUT o3 kills living things.
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The Thais in the countryside, we currently have insect farms at home, it is part of their daily diet. It is very widespread in Asia.
Fresh homemade proteins, it fits well with the philosophy of aquaponics.
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Thank you so much @Torgull for sharing this!
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I just did a virtual consult with an aquaponics facility. They had sacrificial lettuce plants and feeder goldfish while they got their beneficials correct. They used ammonia in their tanks to grow N fixing bacteria. It evaporates fairly quickly, so it took about 60 days of bumping the nitrate level to get the bacteria to a good level.
The microbes naturally pull the ph down, so they use calcium and potassium carbonate for supplementation and pH correction. They use AGT-50 fulvic mineral complex to replace iron and kelp (as a biostimulant and trace element) supplementation.
They already had lettuce and strawberries going with their tilapia and were stocking more densely to introduce larger plants like tomatoes, hemp and eventually tropical fruit trees. If you have greater temperature swings in a Northern climate, you could always do catfish or bluegill.
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Look up blackwater aquariums, high amounts of tannins and humic substances in the water goes a very long way in maintaining the health of your stock.
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The carbon in humates is good for beneficial bacteria. Tannins contain gallic acid, the primary organic acid in AGT-50 responsible for reducing environmental stress.
I would tread lightly with leonardite products or humic acid for fish for a couple reasons. Too much tannins can be toxic to fish. Humic acid is a long chain molecule, which can accumulate and damage kidneys. I would stick with short-chain humates like fulvic acid for aquaponics/aquaculture.
Itâs not OMRI/NOP, but you could treat humic acid with 3% hydrogen peroxide to cleave the humic into much more suitable substances for fish. Just make sure the H2O2 is oxidized before introducing into the tanks.
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Where did you read this at?
One of the human health journals we subscribe to. I sell humates for a living.
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Do you think you could find the article?
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Sure bud. Mondays are killer, but Iâll snag it when Iâm on the clock.