Can You Feed Your Family With Aquaponics?

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  • Sat, Jul 31, 2010 - 02:01pm

    #21
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    Jade Perch – Omega 3 FA Levels

ao,

If your looking to grow the fish with the highest omega 3 content (and best ratio to omega 6, 9) then the Australian Jade Perch is your best bet. The Queensland Jade Perch has a whopping 2400 mg of omega 3 FA per 100 gm of flesh. I do think you would have to supplement their fish food with some greens and insects to achieve anywhere near this level in aquaponics however. Perhaps purslane leaves would be a good supplement. I have read that some people raise this fish in the states, but I haven’t found a source yet.

  • Sat, Jul 31, 2010 - 02:07pm

    #22
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    Re: Drongo, not Dongo

[quote=SagerXX]As for the Australian wildlife, I lived in Sydney for ~ 3 months and I’ll say that the most dangerous wildlife are the 2-legged mammals down the pub ±10 minutes of last call.  I learned to be standing near an exit (or already gone) when that moment rolled around.  

Maybe I patronized the wrong sort of pub…

Viva — Sager[/quote]

Maybe you did Sager…….  but you are absolutely right, way more people die at the hands of other people than any snake or spider or shark!  I’ve scuba dived among sharks (even pushed one away that got too close once!) without any problems.  No, I’m not a drongo!  We have some of the deadliest snakes in the world here (Taipans and Eastern Browns) but they leave you alone unless you corner one (happened to me once in the shed) and all you do is slowly back off.  They give you plenty of warnings if they’re not happy with your presence…

I only know one person who was bitten by a brown snake (at least 40 years ago) and he’s still with us aged 76!

Can’t remember when was the last time anyone got bitten by a spider in the media, though last year was a bad year for shark attacks, probably because so many more people go swimming at dangerous beaches.  More people drown than get attaked by sharks….

Mike

  • Sat, Jul 31, 2010 - 03:17pm

    #23
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    Re: Jade Perch – Omega 3 FA Levels

[quote=JAG]

ao,

If your looking to grow the fish with the highest omega 3 content (and best ratio to omega 6, 9) then the Australian Jade Perch is your best bet. The Queensland Jade Perch has a whopping 2400 mg of omega 3 FA per 100 gm of flesh. I do think you would have to supplement their fish food with some greens and insects to achieve anywhere near this level in aquaponics however. Perhaps purslane leaves would be a good supplement. I have read that some people raise this fish in the states, but I haven’t found a source yet.

[/quote]

That’s interesting.  But it’s Australian … there must be something on it that’s poisonous.;-)

I’m assuming they’re not too cold hardy though.  I need something that can live underneath ice.  Largemouth bass have always been a favorite but they’re higher up on the food chain.  May have to find a pristine enough water source for a trout pond which isn’t too hard to do around here.  

  • Sun, Aug 01, 2010 - 10:35pm

    #24
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    Re: Can You Feed Your Family With Aquaponics?

[quote=JAG]

Earthwise,

What CD (or DVD) did you buy btw?

Jeff

[/quote]

Jeff,

Your original post contains Youtube trailers for Murray Hallam’s DVD on Aquaponics. On every veiwing a pop-up would appear on screen to tout the DVD. However, now upon returning I see no pop-ups. Either someone’s messin’ with me or I been hangin’ around Sager’s pubs to long.Laughing

  • Mon, Aug 02, 2010 - 12:58am

    #25
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    Re: Can You Feed Your Family With Aquaponics?

Feed your Family? If I lived in AZ and had the GardenPond.org guy’s system – I’d be raising the lobster size crayfish – another Aussie import. See the link to Red Claw Farmiing.

We raised them inside the house before and they are prolific breeding crayfish with gorgeous coloring. They also happen to be on my “To Do” list to get started on our hobby farm in one of the outbuildings. The small ones can be eaten as prawns and the large ones are small lobster size (more like very large prawns). And they live in fresh water, eat anything and are a delightful pet.

The only trouble we had was they liked to crawl out of their kiddie pool and into the chicken coop. They are more fun than a barrel of monkeys!

My 2 cents. . .I’d support my family on the system that guy has. . . and feed them too.

  • Sat, Aug 07, 2010 - 09:31pm

    #26
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    The Sun Curve

Alright, this AP system is just a little too fancy

Its called the “Sun Curve” by Inka Biospheric Systems (whose site is unfortunately under construction). The pump is powered by both PV and micro-turbine wind power. The plants are grown in a sheet medium known as bio-quilt. I think these guys, based out of San Francisco, had a little too much money to invest in this project.

It is pretty.

 





  • Sat, Aug 07, 2010 - 09:49pm

    #27
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    Re: The Sun Curve

[quote=JAG]

Alright, this AP system is just a little too fancy

[/quote]

Looks like something outta “Barbarella” — which ain’t necessarily a bad thing.  I suppose if one is wealthy enough to have one’s resilience be both functional and futuristically beautiful….

Of course, one could spend the same amount of money for a system 3x the size — and feed the neighborhood.  Probably more important in the grand scheme of things…  But then, I’m a Community Building nut…  <wry grin>

  • Sat, Aug 21, 2010 - 11:20pm

    #28
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    Re: Can You Feed Your Family With Aquaponics?

 

OK, I’m doing some serious thinking about creating my own aquaponics system – on the supremo-cheapo, of course.  Buying a ready-to-assemble kit for a few thousand bucks is out of the question due to shipping costs and due to my innate desire to frustrate myself endlessly doing things myself.   I have a few questions for the brain trust:

Does anyone know anything about pumps?  How do I know what size pump to get?  

I plan on using the flood technique.  How much water do I need to filter through the growing beds at a time?  How often do I need to do so?  I’m looking for a percentage-answer on the first question and a daly frequency to the second.

How does the start-up balancing process work?  By that, my assumption is one has to start with the fish.  I suppose the fish water needs to be filtered through the growing beds without plants in them initially, to get the bacteria growing.  Is this right?  How do I know when there are enough bacteria so I can start adding plants?

I think I’ve learned all that is possible from the general-overview type info available on websites I’ve found and youtube videos.  I now need detailed, hans-on info.

It seems aquaponics is huge in Australia, as all the books and DVDs I’ve found are only available through Down Under outfits.  I do have a DVD and a book on order, but from Australia to Costa Rica might take a few weeks and I am itching for info.

By the way, this system seems very easy to maintain once you get it going.  And in my area, where I go through 4-5 months of no rain, I need something that recycles as much water as possible.  Aquaponics is definitely the ticket for me, and throws off fish as a bonus.  

Thanks any and all who can help!  If I find nobody can help, I will be keeping detailed notes so hopefully I can post everything I learn back on here at some future date.  

FB

 

  • Sat, Aug 21, 2010 - 11:51pm

    #29
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    What exactly is Expanded Clay?

One more question:  What exactly is “expanded clay”.  All I know is this is the fill material used in the growing beds that is used to support the bacteria colonies that convert urea into nitrates.  It is also used in regular hydroponics, and there are all sorts of manufacturers for the stuff.  The definition for it I’ve found is:

A material made from common brick clays by grinding, screening, and then feeding through a gas burner at about 2700°F (1482°C), thus changing the ferric oxide to ferrous oxide and causing the formation of bubbles.

If I go to a brick factory and ask for their wasted brick pieces and crumbs,  will that be “expanded clay”?  Seems to me like it would, but I am in layman’s land here and have no idea what I’m talking about.  I ask because although I’m sure I could get “official” expanded clay here somewhere, it will probably cost a ton of money due to it being imported, or merely marketed and priced to the naive.  On the other hand, expanded clay being what it is according to the definition I found, it should be easy to find here if I only look in the right places.  There are a few brick factories here but before I go, I wanted to know if their waste is what I’m looking for.

 Thanks!!

  • Sun, Aug 22, 2010 - 02:04am

    #30
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    Re: What exactly is Expanded Clay?

[quote=Farmer Brown]

One more question:  What exactly is “expanded clay”.  All I know is this is the fill material used in the growing beds that is used to support the bacteria colonies that convert urea into nitrates.  It is also used in regular hydroponics, and there are all sorts of manufacturers for the stuff.  The definition for it I’ve found is:

A material made from common brick clays by grinding, screening, and then feeding through a gas burner at about 2700°F (1482°C), thus changing the ferric oxide to ferrous oxide and causing the formation of bubbles.

If I go to a brick factory and ask for their wasted brick pieces and crumbs,  will that be “expanded clay”?  Seems to me like it would, but I am in layman’s land here and have no idea what I’m talking about.  I ask because although I’m sure I could get “official” expanded clay here somewhere, it will probably cost a ton of money due to it being imported, or merely marketed and priced to the naive.  On the other hand, expanded clay being what it is according to the definition I found, it should be easy to find here if I only look in the right places.  There are a few brick factories here but before I go, I wanted to know if their waste is what I’m looking for.

 Thanks!!

[/quote]Do a search for LECA

Lightweight expanded clay aggregate.

Clay is fired in a rotary kiln and it pops like popcorn.

Some is round balls and some looks like 1/4″ grey lava rocks.

I used it as a base layer on the green roof I had on my last home. Great stuff. It allows the root structure to actually live in the holes in the aggregate and since it holds moisture deep within the rock, wind and heat don’t dry it out fast.

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