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  1. 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
  2. Hello fellows. It's been a few years since I've posted on this site, but I am now possibly in a position to build and install an AP system at my current workplace. We operate a moderately sized indoor greenhouse (concrete slab floor). There are so many options out there in terms of systems and components, but I've been looking into AP for many years, and have read these forums many times. The consensus these days seems to be iAVS as the go-to system for ease of design and operation. I can totally get down with that. We want something that is not too large, but can be potentially expanded
  3. Brief Intro: I am Phani Krishna, living and working in UK. During my vacation to India, I am setting up a small scale iAVS system at an orphanage in hyderabad, to establish their own food supply system. I have made some progress with the project and now I feel I need some help from the community to take my ideas forward. The project is being established at the kitchen backyard of the shelter home. The area was all dirty and infested with wild rats earlier and hence I took the decision to pour a concrete slab at the ground level to be sure about the environment for the system. The tan
  4. My quick and dirty setup of an indoor IAVS. I repurposed one of my cement tubs. It has an overflow that should hopefully never be used, but it's there to prevent overflow onto the carpet that might result in being kicked outside without a doghouse. I'm using a 1 1/2" drain using a uniseal from Allied Aqua. The hole is covered with carbon fiber window screen material. It holds the sand in the grow well. Light is a Galaxy Hydro led grow light I found on clearance. Growth is 2 weeks and a few days. I had planted mesclun in the other row, but it did not come up. The seeds were abo
  5. Dear all, I have created this topic to document our own IAVS progress and findings.. In brief, we have over 2+ years of hands-on experience working with various commercial-scale Aquaponics systems.. media beds, NFTs, DWCs, etc. We are now building our first batch of sand beds believing in the IAVS vision. This is to apply as an extension to our current systems. Next, I will update you the progress with some pictures. I look forward to your support. Please share your questions, comments, suggestions.. Thank you.. Kind regards, vkn
  6. Dr Mark R McMurtry...to whom we all owe a debt of gratitude for making iAVs available to the world...was forced to flee a forest fire that has left his mountaintop retreat in ashes. He managed to escape with his life, his beloved dogs, a computer and his old Chevy truck...and the clothes that he stood in. More details available...HERE. He needs our help...NOW! https://www.gofundme.com/horseshoe-hills-fire-victom
  7. New Garden iavs for ORGANIC veggies....circular fish tank with sand bed around the perimetre..(7/8 area) Simple design and easy to construct... Also minimises equipment, time and cost....
  8. I'll update this thread with information about my iAVs build in San Isidro, Costa Rica. I am interested in exploring a relatively simple iAVs system so will be using an IBC tank for the fish and building a simple wooden box with a plastic liner to hold the sand. Still locating some of the components but I will update as I make progress.
  9. Just got introduced to iAV system for Aquaponics. Could someone tell us whether one needs a bio filter with sand or its works like one and we can avoid having a bio filter completely. How does one calculate the size for a bio filter for say 3000 ltr tank with 60 fishes each around .5kg.
  10. An experimental iAVs trial...media used is river sand...powered by 20 tilapia. Designed for easy understanding and educational purpose....
  11. comparing my old gravel bed aquaponics with new iavs beds 10 key points: 1.fish growth 2.ammonia 3.pH change 4.water turbidity 5.plant diseases 6.fish diseases 7.nutrient uptake 8.nutrient deficiencies 9.solid waste management 10.energy
  12. Version 1.0.0

    221 downloads

    Fish Increase Greenhouse Profits An aquaculture study in North Carolina shows that fish and vegetables can be good companion crops. By Doug Sanders and Mark McMurtry February 1988
  13. Version 1.0.0

    228 downloads

    Aquaculture in Greenhouses: Fish and Vegetables Grow Together by Dr. Mark R. McMurtry This article was featured in NCSU Research Perspectives 7:3
  14. Version 1.0.0

    277 downloads

    IAVS Folio Reprints from Inside Dr. Mark R. McMurtry's Research Greenhouse by Dr. Mark R. McMurtry This document includes numerous photos of the inside of Dr. McMurtry's research greenhouse, the growbeds, plants, fish and more. Some production data concerning both plants and fish is also included, as well as some growth rate data pertaining to the tilapia.
  15. Version 1.0.0

    246 downloads

    Food Value, Water Use Efficiency, and Economic Productivity of an Integrated Aquaculture-Olericulture System as Influenced by Tank to Biofilter Ratio M.R. McMurtry, D.C. Sanders, B.C. Haning, and P.C. St. Amand Includes the original text as well as supporting data tables. (2 documents)
  16. Version 1.0.0

    238 downloads

    Sand Culture of Vegetables Using Recirculated Aquaculture Effluents M.R. McMurtry, P.V. Nelson, D.C. Sanders, L. Hodges Department of Horticulture Science North Carolina State University This appeared in Applied Agricultural Research Vol. 5, No. 4, pp. 280-284
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    110 downloads

    Yield of Tomato Irrigated with Recirculating Aquaculture Water M.R. McMurtry, D.C. Sanders, R.P. Patterson, A. Nash Featured in Journal of Production Agriculture, Vol. 6, no. 3, 1993
  18. Version 1.0.0

    191 downloads

    Yield of Tomato Irrigated with Recirculating Aquaculture Water M.R. McMurtry, D.C. Sanders, R.P. Patterson, A. Nash Featured in Journal of Production Agriculture, Vol. 6, no. 3, 1993
  19. Version 1.0.0

    942 downloads

    Water Quality Maintenance and Mineral Assimilation by Plants Influence Growth of Hybrid Tilapia in Culture with Vegetable CropsM.R. McMurtry, R.G. Hodson and D.C. Sanders University of North Carolina Sea Grant College Program and Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695 This is a multi-file document. Please download all associated files for proper cross referencing. Main Document: J. WAS 94 Text_alpha Cit.pdf Supporting data, tables and figures: J. WAS 94 Tables.pdf J. WAS 94 Table 3 final.pdf
  20. A very good post of what is IAVS was submitted recently by Dr. McMurtry. I felt it deserved it's own thread. VKN - and anyone else who may benefit/care: I’m going to attempt to smooth your ruffled feathers. I DO want very much for you - and everyone else - to succeed ‘beyond your wildest dreams’ (exceed expectations). If I didn’t, then I wouldn’t still be typing, or otherwise infecting APN with my demonic ‘attitude’ - or ‘putting up with’ hostile lying trolls. I hesitate to craft the definitive ‘definition’ of iAVs at this time, but I’ll ‘give a shotâ
  21. Looking thru the old literature on hydro sand culture. Assumption being some research there might provide insight into the bed design for IAVs. Ran across this that might be of interest -- Pure sand can be used in trough or trench culture. However, in desert locations, it is often more convenient and less expensive to cover the greenhouse floor with polyethylene film and install a system of drainage pipes (PVC pipe 5 cm in diameter, cut one third through diagonally every 45 cm along the length of the pipe, with the cuts facing downward) and then to backfill the area with sand to a depth
  22. Here in West Texas, frac sand is everywhere; it's common to see a few bushels dumped on the side of the road, where some idiot trucker decided to clean out the bottom lines on their trailer. Most of the sand arrives already mixed with additives, but some vendors have clean sand available - washed, dried and in bulk. Fairmount Santrol has a location here in town, (I actually worked there years ago, when it was a different company) and I thought their "BEST SAND SILICA SAND" would be a good fit for an iAVs sand bed. FM-0557_BestSand_SilicaSand_Sheet.pdf Frac sand was mentioned in the R
  23. From the album: small iAVs in California

    what has been described to me as "playground" sand, quartz-silica. First sample.
  24. Hi all, many wishes for a bountiful new year! In previous posts I've admitted to my utter lack of experience with aquaponics/iAVs and though I'm quite a ways off from building anything, I am still intrigued by iAVs. I find, though, that I have a hard time following some of the technical details (here on the forums or on the iAVs site) BECAUSE I'm not starting from a place grounded in AP experience. Seriously, I have a betta in a one-gallong jar and a guppy (soon to be plural) in a planted six-gallon tank (filterless, I'm aiming for biological/ecosystem help). I use tank water on my ho
  25. At indubitable risk of ridicule, 'reputation' (alleged), and subjection to virtual-tsunamis of unrestrained laughter, offered for your viewing delight tonight: iAVs pro forma US profit potentials.tiff "Ninety percent of the time things turn out worse than you thought they would. The other ten percent of the time you had no right to expect that much." - Augustine "As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls." M
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