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zakruti.com » Do it Yourself - Handmade » Epic Gardening
492lb of Cucumbers in 4 Weeks! Aquaponics Greenhouse Tour

492lb of Cucumbers in 4 Weeks! Aquaponics Greenhouse Tour

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Rating: 4.0; Vote: 1
My friend Martin built an aquaponics greenhouse for the non-profit he works with, Ecolife Conservation. He's built some incredible aquaponics systems in the past, but I think this is my favorite one of his. In fact, he harvested almost 500lb of cucumbers just a couple of weeks ago from it, and there are thousands of pounds more coming over the course of the summer. Today, we're going through the details of his system. He's made some interesting improvements on traditional aquaponics setups which are high in nitrates but can often lack other key nutrients in high enough amounts. By aerating and filtering the solid fish waste, he's been able to extract even more nutrition from the tilapia he keeps. The water from the aerated fish waste is filtered out to nearly clear, but with 4x the nutrient profile of the water that's typically found in an aquaponic reservoir. and more trace nutrients as well. Very clever!
Date: 2022-07-18

Comments and reviews: 15


I have been studying like crazy every system designer to me 'Martin is Brilliant' in a category all his own - the only designer talking about using the solids not just tossing out to a garden etc,
MY Questions!
(1) From tank the flow goes to 2 filters, why 2 filters -more info on types and flow back to fish or plants?
(2) the Solid flow goes to 3 tank setup, Please explain more detail on flow and time etc? (I am begging) please spend in future more time on explanation?
(3) Tomatoes and cucumbers are a deep water culture system but in video flows to raft system that look like ebb and flow this confuses me please explain - how done if is DWC type?
4) I am building a 600 to 800 sq ft green house over this winter. I am type that likes to build a system once without plumbing errors. this spring I will set up system to feed family of 4.
Please make longer and more detailed videos of a few of Martins systems.
PS if you have posted other videos of systems Martin designed can you please post links!

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Cool system and video. If I were to give any advice for a scaled down system, I would go hybrid if you are absolutely convinced that you need a raft system. Put a media based grow bed immediately downstream from your fish, and add some worms - they will be fine in expanded clay flood/drain. This will save your need for solids filtration at least in a backyard system. As well you could add a solids separator (Cone bottomed tank with ball valve at the drain) and compost the solids knowing that you have dirt needs too. Thanks for these very educational videos - intelligently done.
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Oh dear, wish I have that technology to produce and consume. Someday I will have that technology and the produce I will give it away to all my neighbours and if it's more enough I will give it to those hungry in my community.
Thanks Kevin, this is so inspiring and I think I will start researching for such technology. Very amazing!
Wow, wow, wow! Love, love, love!

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hey man how you doing, I love your video. I have question, I've been looking into this stuff and I want to know how much it cost to feed about 100 tilapia from small till they about 1. 5lb or 2. I want to know if it's profitable I want to start business in haiti my main concern is the cost of feeding.
if you can give some info that I would appreciate it, thanks.

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scaling down is real easy i started years ago with small units for back yard city farming. Then went bigger which increases problems but can be worked out. My smallest design was 18 by 24 for apt living with solar air stone. This can produce a lot of food constantly. Was only hydro. but do aqua and hydro about 80% to 20% now keep up teaching people
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500 lbs of cucumbers in 4 weeks sounds non profitable at all. It makes perfect sense that this is a nonprofit that donates everything. Good for educational purposes, but not sustainable at this scale quite yet. I love learning about what people do, because not all of us have the iniciative or dedication to grow our own food. Great work guys!
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If you impliment electroculture in this greenhouse you may be able to reduce some of the nutrient needs whilst at the same time increasing yeild. Simplistic method is run thin grid of copper wire above the plants and apply very high voltage potential to the grid but only 1-2miliamp. This increases plant growth a huge amount.
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I've missed something your tank with microorganisms within the body of water are they tubifex worms, Moina, Daphnia. Aka fish food/ water fleas? If so how do keep them out of the circulation system and migrating elsewhere then disappearing? I use them for tropical fishes.
Thks Jason

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Would be really cool to see the greenhouse automation side of his build. How the greenhouse temps are controlled? What is considered enough exhaust and intake space for that size greenhouse? And an interesting one, keeping pests out but allowing pollinators in?
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I will be watching for any future attempts at a scaled down aquaponic system you attempt. I am considering one on the west wall of the current greenhouse, or installing a high tunnel off the east side and doing a larger aquaponic system.
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I would love to know if Martin is available for advice on designing a system like this. Im currently in the process of moving from San Diego to Minnesota and could use his advice for a small home based Aquaponics commercial farm.
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So how do you get potassium and other nutrients not produced by the fish to the tomatoes? If youre adding other nutrients before it gets to the plants can that be dangerous to the fish when the water cycles back to their tank?
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So did I understand that correctly, using the fish waste directly is bad? Because I have heard someone say that they water their houseplants using water from their fish tank and I'm just wondering if that's a good or bad idea
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I would like to know what he added to make his Tomatoes and Cucumbers so prolific and from what I've read they need alot more than just nitrogen. I would love to replicate this at a smaller home size
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I'm always curious on how you solved lighting problem. My plants don't have enough light, but I don't want to use extra electricity to solve the problem since it won't be environmental friendly
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