Aquaponics Digest - Tue 04/10/01
Message 1: update
from "Devon Williams"
Message 2: RE: update
from "billevans"
Message 3: Re: Cleaning Grow Beds in S&S system was: Steve, change your
underwear!!
from Peggy & Emmett
Message 4: re: update
from "dwilliamsx6"
Message 5: Re: Cleaning Grow Beds in S&S system was: Steve, change your underwear!!
from "TGTX"
Message 6: Re: Red raspberries
from "David Andrews"
Message 7: Re: Red raspberries
from "Adriana Gutierrez"
Message 8: RE: update & LED 'at' s
from "Hurst, Steve ( China)"
Message 9: FW: Grow Bed Media sanitizing & clarifier
from "Hurst, Steve ( China)"
| Message 1
Subject: update
From: "Devon Williams"
Date: Tue, 10 Apr 2001 15:51:39 -0400
Just thought I'd update everyone on my fish woes...
Actually, right now there are very few "woes". My ammonia level has fallen
to less tan 1.0ppm (This tells me that my bacteria is taking hold in the
gravel bed). My Nitrite level is still too high, between 1.0 and 2.0ppm,
although I haven't had any fish mortality since Wednesday April 4, and the
fish are looking much stronger. DO is still steady at about 8.0ppm. pH is
around 7.0-7.2. Water temperature is steady at about 78F. The fish are
eating well.
I changed the way that my return water sparys into the fish tank because the
fish (IMO) were swimming themselves to death, never getting to relax because
of the strong current. Instead of spraying in at about a 45 degree angle, I
have changed the nozzle to 90 degrees, and the water sprays in almost
straight down, although I left a bit of a turn in the connection to make a
small amount of counter-clockwise current.
Here's an off the wall question...anybody know where I can get banks of LED
lights? I was reading a NASA story
(http://science.nasa.gov/headlines/y2001/ast09apr_1.htm?list47198) about
growing plants in space and saw that they use LEDs to provide the necessary
light for the plants. Sounded really cool!
All done rambling for now.
Devon Williams
Beer Belly Brothers Brewing
Watkinsville, GA
ooooo
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| Message 2
Subject: RE: update
From: "billevans"
Date: Tue, 10 Apr 2001 14:10:43 -0700
(http://science.nasa.gov/headlines/y2001/ast09apr_1.htm?list47198) about
growing plants in space and saw that they use LEDs to provide the necessary
light for the plants. Sounded really cool!
.... and really $$$$$$$$$$$$$$$
| Message 3
Subject: Re: Cleaning Grow Beds in S&S system was: Steve, change your
underwear!!
From: Peggy & Emmett
Date: Tue, 10 Apr 2001 18:17:29 -0400
At 09:08 PM 4/9/2001 -0500, TGTX wrote:
Ted, not the French painter. Too Loos Li was our past presidents favorite
Chinese secretary when travelling. .....Em
| Message 4
Subject: re: update
From: "dwilliamsx6"
Date: Tue, 10 Apr 2001 19:26:21 -0400
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Devon, here is a possible source for LED lights. Most of the later model =
cars and suv's are using led's for the high mounted stop lamps. Some =
models have up to 40 led's in the assembly. An inexpensive source could =
be junk yards. They are also designed to work on 12 volts, so a small =
solar unit could power them. Only drawback is they are usually red. Hope =
this helps..
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Devon, here is a possible source for =
LED lights.=20
Most of the later model cars and suv's are using led's for the high =
mounted stop=20
lamps. Some models have up to 40 led's in the assembly. An inexpensive =
source=20
could be junk yards. They are also designed to work on 12 volts, so a =
small=20
solar unit could power them. Only drawback is they are usually red. Hope =
this=20
helps..
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| Message 5
Subject: Re: Cleaning Grow Beds in S&S system was: Steve, change your underwear!!
From: "TGTX"
Date: Tue, 10 Apr 2001 18:48:31 -0500
> At 09:08 PM 4/9/2001 -0500, TGTX wrote:
> Ted, not the French painter. Too Loos Li was our past presidents favorite
> Chinese secretary when travelling. .....Em
Gotcha. I stand corrected, sir.
Ted
| Message 6
Subject: Re: Red raspberries
From: "David Andrews"
Date: Tue, 10 Apr 2001 20:25:35 -0400
Doug,
How do I get a copy , nobody carries it around me.
Roy Andrews
----------
> From: Douglas J. Peckenpaugh
> To: Aquaponics Discussion List
> Subject: Red raspberries
> Date: Thursday, March 01, 2001 1:28 PM
>
>
> The next issue of The Growing Edge (May/June, on newsstands in early
> April, going to press next week) will feature a comprehensive discussion
> of growing all types of Rubus spp. canes in a greenhouse environment.
> Hydroponics is the focus of the article but the techniques could
> probably be easily adapted to an aquaponic system.
>
> Doug Peckenpaugh
> Editor, The Growing Edge
| Message 7
Subject: Re: Red raspberries
From: "Adriana Gutierrez"
Date: Tue, 10 Apr 2001 21:11:05 -0500
You can subscribe at http://www.growingedge.com/ it's worth it.
Adriana
> How do I get a copy , nobody carries it around
me.
> > The next issue of The Growing Edge (May/June, on newsstands in
early
> > April, going to press next week) will feature a comprehensive
discussion
> > of growing all types of Rubus spp. canes in a greenhouse
environment.
| Message 8
Subject: RE: update & LED 'at' s
From: "Hurst, Steve ( China)"
Date: Wed, 11 Apr 2001 02:12:01 +0100
Devon,
I have been experimenting with LED 'at' s as a source of light for Solar
Lighting. You can obtain these now in Super Bright and Ultra Super Bright
types. They are arranged in small clusters or grids for maximum
effectiveness.
They are so bright you cannot look at them, and very little power
consumption,
with very little heat generated.
I am just at an "experimenter stage", so cannot help to much on this.
I obtained mine from a british company that distributes all over the world.
They do almost exactly the same range of items as the US "Radio Shack"
company.
The supplier I use is "RS Components". Their website gives a host of
technical
info on all their products, including these LED 'at' s, although you will have to
register
to access the technical library ( free)
http://www.rswww.com/
Can 'at' t help on the Radio Shack site
Steve H
| Message 9
Subject: FW: Grow Bed Media sanitizing & clarifier
From: "Hurst, Steve ( China)"
Date: Wed, 11 Apr 2001 03:08:32 +0100
Hi Paula,
Not sure about being able to obtain the Hydrogen Peroxide, but its
another solution to look out for.
As this is my first trial node, I plan on experimenting anyway. The
cheapest solutions that have been suggested are Sun Baking and Boiling,
so I am going to give these a shot. If it works, saves money for the future.
>Steve - I don't know if you can obtain 35% food grade hydrogen peroxide
>there or not, but it is the safest to use -- after its initial reactive
>stage, it is harmless in your system. We have a US supplier, but I've not
>looked into international suppliers.
Whether to use a Clarifier or not seems to be one of the more difficult
decisions to make. Reading Ted 'at' s reply it looks like it depends a great deal
on where the balance is between your Fish Production, and your Vegetable
production. Ron has had experience with this particular type of media and
has had the pore surface clog when not using a filter.
It looks like there are several variables here that I will have to consider.
Reading your last reply ref getting the system up and running is another
point to consider.
As this is a trial node I am going to make it as flexible as I can.
My intention is to build the system with the ability to add or remove the
Clarifier
as necessary. That way I could get it started without the clarifier, and a
few
fish from the, pond , then when the gravel bed is established, and the fish
stocking
densities have been increased, see the effect of adding and removing the
Clarifier,
on the plants,gravel bed and the water quality.
>As to a clarifier, you'll need to make that call for yourself; but I think
>you'd be increasing the amount of time it takes to get your system
>functioning. Clarifiers are important in mechanical filtration systems to
>keep the water clean enough for the fish, but in an aquaponics system
you'll
>have to feed the plants to keep the growth balanced with your fish growth.
>Seems counterproductive unless you're growing in a media that does not
>support this -- like the UVI system Dr. Rakocy has going. They grow in
>floating rafts, and the extra solids clog the root systems.
>As to a clarifier, you'll need to make that call for yourself; but I think
>you'd be increasing the amount of time it takes to get your system
>functioning. Clarifiers are important in mechanical filtration systems to
>keep the water clean enough for the fish, but in an aquaponics system
you'll
>have to feed the plants to keep the growth balanced with your fish growth.
>Seems counterproductive unless you're growing in a media that does not
>support this -- like the UVI system Dr. Rakocy has going. They grow in
>floating rafts, and the extra solids clog the root systems.
>Be interested in what you decide.
Thanks to everyones input on this..
I now have a plan !
Steve H
|
