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  3. There was a typo. IAS = Recirculating Aquaculture System (RAS) + Hydroponics + Organic Agriculture
  4. Hi everyone, When I first started aquaponics I was happy to find I could grow vegetables and fish using a symbiotic relationship between the two. In my uneducated way I was thinking this was starting to be one of the best ways to grow things. I can say now, I question that thought. Is it???? So here's some questions I'd like to throw out to people and get their thoughts. Is there any one particular best system? Do you need multiple different system to make your food production the best? What knowledge do you need to have to run a system? What's the cost of setting up a system? What's the cost of running a system? Do you need to be around the system all the time to cater for things to keep it running, are you tied to the system or can you go on holidays? How successful will the system be? My answer is aquaponics is not the best single system. If I want to go on holidays then the fish become problematical so in this instance maybe just having a home vege patch is the best system, maybe a hydroponics system is better, maybe a wicking bed setup with a way to make the reservoir fill up on it's own added. So there are a few of my thoughts. What do others think? Cheers.
  5. Q: How to feed 1000 people year round? Here is a typical Integrated Aquaponics System (IAS) project suitable for 200 families or to feed approx 1000 people year round. We have done similar projects. This vision would need a total build area of one to two acres. This is what we are currently working on.
  6. It does not really matter how you want to grow more food. Think beyond sand beds. Our children and grand children do not want greenhouse-gas emissions, poverty, and biodiversity loss. Let us do our bit whatever we can. Do something awesome! IAS = Aquaponics + Hydroponics + Organic Agriculture You can grow microgreens, greens, herbs, vegetables, fruits, fowls and small livestock using IAS methods.
  7. Hey my school is looking at stocking their new aquaponics system and is looking to find out if anyone knows of a supplier of small-scale pacu or piranha pacu. (piranha pacu name as a result of coming from the parana river in paraguay).
  8. My sandbeds have been doing just fine for the past 3+ years. Would like to know how it has been improved. The video didnt tell me anything.
  9. Any updates to your "reinvention of the wheel"? What did you decide to do?
  10. Hi VKN Greetings to you as well. I would like to hear/see your developments cheers
  11. Dear friends, Greetings! I hope you are staying healthy. Long story short, so much has changed in what have been doing. IAVS has been substantially modified and improved. We call it IAS now, Integrated Aquaponics System! IAS - the art and science of growing more food organically, with much less water and energy. You can grow fish, microgreens, greens, herbs, vegetables, fruits, fowls and small livestock using IAS methods. Here is a very brief video for you to have a look. Based on your response, I will elaborate. Kind regards, vkn
  12. ande


    Hi Jason Welcome to APN/HQ There are so many variations on flow design, so it's impossible to point at one specific pump type/brand. In principle you need a pump that can circulate the entire tank volume in 1-2 hours. So you need a pump that can move minimum 1500 l/h accounted for your designs headloss. There is a lot of discussions on the matter in "old" threads that might be helpful to read thru like these : cheers
  13. JasonDenning


    I am looking to buy a pump, my aquaponics system will be a split flow system using a 1500L fish tank that is 85 cm tall, the pump will be placed Iin the sump tank, 2 meters away from the fish, water wil be pumped to 1 grow bed above the sump and to the fish. What are reliable pump brands? what pumps could handle this load? What pumps are best value for money? Your imput is much apreciated
  14. This instruction video isn't correct. The fishfood should cover the needs of the fish as accurate as possible. Shifting to a lower protein diet (sub-optimal) is going to result in more waste, lower food utilization % (higher FCR), and maybe even compromised fish health, thus this makes no sense to me. IMO better would be lower total feed load, less fish or more plants and/ or secondary nitrate removal. Water replace, dnf etc.. Btw if you stop feeding the organic waste in your system will still be broken down slowly, further bacteria mass will go down too, again with the release of nitrate, thus there can be a long delay in reduction of nitrate production after reducing input.
  15. Hi Jejanov, Maybe you may need to add another grow bed and add some more plants in that grow bed. I wouldn't be doing to many more water changes, you may effect the chemistry of your already matured system. I'd be testing my water daily and logging it, doing maybe 10 percent water changes every week or two now and gradually work on settling and bringing the nitrates down as well as adding another grow bed. I know your system is mature but I wouldn't be to bothered if my nitrates were 100 even 180 at the moment and depending on your fish, as I suggested I'd just work on gradually trying to even them out and gradually reducing them to the levels you want. A couple of questions, How long have you stopped feeding your fish for? How old is your system? What's your pH? What's your fish tank water temp? What plants are you growing and What type of fish do you have? Cheers.
  16. Thanks for the reference. I’ve been doing substantial water changes and have been successful in reducing the nitrate levels to 40 ppm only for them to climb back up to 100 with a reduced feeding. I’m going to look at sourcing lower protein content feed. Plant growth is abundant and healthy but obviously the nitrate production is exceeding the uptake. This will be an even larger problem over winter.
  17. Hi Jejanov "my rule of thumb" is water change. Mainly for the fish health/welfare. Of course fish age/specie means there is a variety of tolerance to high nitrate, but it can take weeks to reduce the nitrate levels. So I would recommend to use some of your tank water in the garden, and then top up the tank. I assume your "fresh water" source, does not hold a high nitrate level ? cheers
  18. Good morning folks. I'm reaching out to see if anyone has a rule of thumb regarding how much time you would expect it to take for the Nitrates to go down if you were to stop feeding your fish. I have a cycled system with ample plants and appropriately size bio mass, etc. and I'm running into high nitrate levels even after having stopped feeding my fish. Water is clear, ammonia is trace, nitrites are 0, and all other perimeters are optimal. My thought is that maybe my grow beds have accumulated waist that is breaking down continually but I have a solids filter and it is cleaned regularly. Thanks
  19. Hi Benson and welcome to APN, Tell us more about how you are thinking about applying this to your situation. Some questions off the top of my head Are you thinking about just investing in a small home scale turbine and only applying it to your aquaponics or applying it to your home as well? How will you get the water flow needed to run the turbine? Do you have a river or are you thinking about some sump arrangement with a pump to create a head and flow? Do you have a suburban house or property in the country? On a whole of house scale, I don't have a country property with flowing water running through it. About 9 or 10 years ago I did think about a property with the view of adding hydro so I could stay off grid. The conclusion I came up with regarding hydro is you really need to be an electrician to be able to maintain the electrical side of a hydro plant, plus by the time you invested in hydro and the extra effort you needed at the time to run it it was easier to run on grid, so I did not continue my research into the hydro side of it. Like solar and solar energy storage things may of changed now. Co incidentally, if you are interested in looking at another alternative energy you may like to look at my thread called bigdaddy's alternative energy. I have recently posted what I have been doing in that regard. I'd be interested in what you do so please keep us posted. Cheers.
  20. Looks like I'm about 9 years late replying to this but this is a concept I think about constantly as well. Some of the big questions I have found are: -Is the flow (LPM) strong enough to turn a turbine to generate power? What is the minimum needed for this to be viable? -Will placing a hydroelectric turbine in the system effect bacterial colonization? -Is there a possibility of creating a terraced aquaponics system which will create greater head from which the water to drop and therefore generate a higher volume of energy? Additionally, one potential way to incorporate hydroelectric into the system is through the use of I believe what is called the Kaplan turbine. This turbine would operate as both a filter and through the vacuum it creates, a pump as well. All the while it could also be generating electricity, even if just enough to help offset some of the energy costs associated with running an aquaponics farm. If anyone would like to discuss this in more detail, please reach out to me. I am looking for others to discuss designing and building a proof of concept on this, what I have coined CLAEYS: Closed Loop Aquaponic Energy Yield System.
  21. HiJecha, What are all of your readings? pH Ammonia Fish tank temp Nitrates Nitrites. Also, if you could describe your system and maybe post it in the aquaponics systems section so we can see what you have in it, that would be helpful. Cheers.
  22. Hi everyone, Some more pics of my new backyard setup. All grass and dirt up and out, road base in, reo mesh and storm water set up ready for concreting. Concrete down, channel drains down, vibrator in ready to compact the base. 600 x 600 x 30 granite pavers going down. A snapshot of how my back and side corner will look with the fake grass down. I can put my fish tank and grow bed here with a nice drain built in to the set up if I wish. Chanel drains up and out and granite going all the way to the back fence, a much better look. Cheers.
  23. Hi! I just wanted to ask. The nitrite content in water of our Media Bed aquaponics is higher than the acceptable range of ppm, however the other parameters were desirable. I had check the possible reasons that might contribute to this problem. It might be the water spinach but found out that in some articles regarding about it says, it actually enhances water quality. I've been thinking it might be the condition of our charcoal filter. When does occasionally the charcoal need to change or replace? Your help is highly appreciated☺️.
  24. Hi Jennifer and welcome to APN, Typically the aquaponics we talk about here is using a RAS system. This means we have a fish tank( which can be filled by your water from your steam), with nutrients added by fish, then the water goes from your fish tank to a or some grow beds(bio filter) to feed your plants, then to your additional filters and returns back to your tanks. First of all the fish tank is cycled, at the same time plants are added to (typically media filled) grow bed and once the system is cycled the water is kept in what can be described as a closed loop. After some time the level of the water drops naturally, either by evaporation, transpiration, cleaning or all, then top up water can be added (from your stream). sometimes in a mature system if the testing is too high a partial drop( approx 10 percent) may be needed and a top up added. I like to drop the water 10 per cent occasionally. Hope this helps, Cheers.
  25. Hi everyone, I have started my iVAs with on a completely blank canvas. I thought I'd post my journey in some sort of chronicle order and maybe give some ideas for those who may be thinking about a system and/or for those who already have systems. I feel good planning is the key to building. I have spent many hours thinking sketching measuring and using whatever else I have at my disposal. My aim is to build and run the most efficient, productive system I can, making the beat use use of the space I have. I have several challenges. Below is a list which is not conclusive. I can break down these items to further explain but will not for now. Cost Looks Very small backyard Suburban living Weather Maintenance Time My backyard measures 4.8 metres by 5.0 metres Here are some pics from the the start. The original side with my beloved citrus trees with the left side 2 sitting on the slab where my air conditioner originally was. My new pergola. The original rainwater tank New slimline rainwater tank and system ready to be re plumbed and reinstalled. Air conditioner and rainwater tank installed around the side out of the way where noise and size will be minimized. My original line of thinking about a small iAVs system. Another view of my original backyard, this time to the back fence with the back garden removed. A more current view of pic 1, backyard opened up with all the screening up and roof addition to pergola. More to come. Cheers.
  26. Some pictures. Changing out the grow bed to a 6 by 3 by 7 inch deep, got one for free from a friend and since the new baby can’t be spending a lot! But here’s some pics
  27. So i am worried I may have to change my grow bed size. Right now I’m using a ibc tote for the fish, the water leaves through a bulkhead fitting in the side, to a 4x 8 foot grow bed, this grow bed is the one in question. It’s 4x 8 but 4 inches deep. I’m running it continuous flood to drain now bell syphon (worries it’s to shallow to do) then it goes to a small 40 gallon res from there it is then pumped back up to a grow tray on top of the ibc tote before draining back to the ibc tote. The total plants is now 4 cucumber, 4 pepper , 38ish lettuce. my main question is should I change my grow bed to a deeper one (7 inch) with a bell siphon or should I just add a filter to my existing system, (or is the need for a filter outweighed by my plant ammount)
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