Aquaponics Digest - Mon 04/19/99
Message 1: Re: Algae Solutions
from "Andrew Dezsery"
Message 2: Re: Ratios, was Re: Start up
from Jim Sealy Jr
Message 3: Farm start
from "Marc S. Nameth"
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Subject: Re: Algae Solutions
From: "Andrew Dezsery"
Date: Tue, 13 Apr 1999 12:26:45 +0930
> > A little barley straw will prevent excess algae!
Microbial growth, warm water and good oxygenation activates decomposition
of barley straw. Lignin ( woody material) oxidizes into homic acid and ends
up destroying the algae as an organic algaecide.
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Subject: Re: Ratios, was Re: Start up
From: Jim Sealy Jr
Date: Mon, 19 Apr 1999 09:42:11 -0500
I'm pretty much using the ~1:2 ratio, but with 1/4"-3/8" washed/screened
pea gravel. 4 1'x4'x8' (plywood with pool liner) beds per 1000 gal stock
tank, stocked with 1200 hybrid bream per tank. When I first flooded the
system it pulled the tank down too low for me to feel comfortable (fish
showed distress) so I switched to staged flooding. 2 beds are filled to
capacity and drained, which then shuts off the pump. The next 2 beds
then get filled and drained. This alternating of beds seems easier on
the fish. Should I be concerned about the greater amount of airspace
apparently on my media? It seems to be working well enough now.
How far should the flooding of the beds pull down the fish tank? My
water level dropped 1.5 feet the first time so I just assumed something
wasn't right about my ratios.
Jim
PS: the dozer work is done on my first commercial scale aquaponic
greenhouse (5500 sq.ft / 22,000 gal lap pool style raceway tank) and we
start to stake off the foundation tomorrow. Wish me luck..
S & S Aqua Farm wrote:
>
>
> I apologize for misunderstandings my statement may have caused. I should
> have said one cubic foot of water to two cubic feet of grow bed media - in
> our case gravel. If your grow beds were only 3" deep, as Adriana mentions
> above, the square footage of grow space should increase 4 times.
>
> We've settled on this ratio based on both growth results in the plant beds
> and water quality. And Jim, if your gravel beds are filled to "capacity"
> with 1/8" to 1/4" gravel, only the amount of water that can temporarily fill
> in the air space would be required to "fill" the gravel bed.
>
> Hope this more clear.
>
> Paula
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Subject: Farm start
From: "Marc S. Nameth"
Date: Mon, 19 Apr 1999 10:42:15 -0700
We sold our house and have a contract for a farm East of
Pueblo, CO.
We will be starting operations around the start of July,
1999. We are currently staying at my brother's where we are
building growing stuff.
Thanks to all who extended support, advice and humor.
Marc, Marcy and the Kids.
http://www.dimensional.com/~marc
S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775 417-256-5124
Web page http://www.townsqr.com/snsaqua/
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