Aquaponics Digest - Tue 03/20/01
Message 1: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
from Donald Bailey
Message 2: Re: Herbicide
from "STEVE SPRING"
Message 3: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
from "Devon Williams"
Message 4: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
from "Devon Williams"
Message 5: Hydra and Micro worms
from MKern
| Message 1
Subject: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
From: Donald Bailey
Date: Tue, 20 Mar 2001 08:33:55 -0400
I would agree with Steve. Don't worry about adjusting the pH down.
When you stock your fish feed them small amounts (1%) for the first 2
weeks. The fish will produce ammonia and the nitrifying bacteria will
begin to grow. The nitrification process produces acid and the pH will
drop. Depending on hardness and alkalinity the drop will be rapid or
slow. At 26 deg C and pH 7.6 the un-ionized ammonia is only 2.37% of
the total ammonia-nitrogen. Not too much to worry about.
After acclimating the biofilter increase your feed amounts to your
desired input level, either ab libitum or on a fixed feeding schedule.
Donald Bailey
UVI-AES
We keep our pH between 7.0 and 7.5
> Message 1:
> from "Devon Williams"
>
Message 1
>
> Subject: pH, DO, etc...
> From: "Devon Williams"
> Date: Mon, 19 Mar 2001 10:11:59 -0500
>
> Hi everyone. Now that I am pretty close to ready with my system, I have
> been testing the water, and came across a few questions...
>
> At what pH level do you keep you water? I am getting conflicting ideas on
> this...some say below 7.6 is best, while others say 8.2 is best.
>
> What DO level is appropriate?
>
> Do you all measure hardness (carbonate and general), and if so what is an
> appropriate level for this?
>
> At what level do you try to keep ammonia? I don't have an ammonia reading
> yet since I have no living creatures adding it to the system, but thought
> I'd ask anyway.
>
> Any other tips on appropriate safe readings would be appreciated!
>
> Thanks!
>
> Devon Williams
> Beer Belly Brothers Brewing
> Watkinsville, GA
>
> ooooo
> |..oo=|
> |...o |
> |...| |
> |...|=|
> |___|
>
> _________________________________________________________________
>
>
| Message 2
Subject: Re: Herbicide
From: "STEVE SPRING"
Date: Tue, 20 Mar 2001 11:49:14 -0600
Very interesting article Marc. I printed it to save.
Steve
----- Original Message -----
From:
To:
Sent: Monday, March 19, 2001 1:20 PM
Subject: Herbicide
Browsing through my workplaces news stories I found a very
interesting article.
Here's an interesting science story about an organic/natural
based
herbicide figured out by a teenager:
http://www.sciserv.org/sts/60sts/Kessans.asp
Marc N.
| Message 3
Subject: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
From: "Devon Williams"
Date: Tue, 20 Mar 2001 14:51:30 -0500
Thanks Donald. I checked my DO2 today and got an 8.0ppm reading at about 74
deg F. How does that sound???
>From: Donald Bailey
>Reply-To: aquaponics 'at' townsqr.com
>To: aquaponics 'at' townsqr.com
>Subject: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
>Date: Tue, 20 Mar 2001 08:33:55 -0400
>
>I would agree with Steve. Don't worry about adjusting the pH down.
>When you stock your fish feed them small amounts (1%) for the first 2
>weeks. The fish will produce ammonia and the nitrifying bacteria will
>begin to grow. The nitrification process produces acid and the pH will
>drop. Depending on hardness and alkalinity the drop will be rapid or
>slow. At 26 deg C and pH 7.6 the un-ionized ammonia is only 2.37% of
>the total ammonia-nitrogen. Not too much to worry about.
>After acclimating the biofilter increase your feed amounts to your
>desired input level, either ab libitum or on a fixed feeding schedule.
>
>Donald Bailey
>UVI-AES
>
>We keep our pH between 7.0 and 7.5
> > Message 1:
> > from "Devon Williams"
> >
>Message 1
> >
> > Subject: pH, DO, etc...
> > From: "Devon Williams"
> > Date: Mon, 19 Mar 2001 10:11:59 -0500
> >
> > Hi everyone. Now that I am pretty close to ready with my system, I have
> > been testing the water, and came across a few questions...
> >
> > At what pH level do you keep you water? I am getting conflicting ideas
>on
> > this...some say below 7.6 is best, while others say 8.2 is best.
> >
> > What DO level is appropriate?
> >
> > Do you all measure hardness (carbonate and general), and if so what is
>an
> > appropriate level for this?
> >
> > At what level do you try to keep ammonia? I don't have an ammonia
>reading
> > yet since I have no living creatures adding it to the system, but
>thought
> > I'd ask anyway.
> >
> > Any other tips on appropriate safe readings would be appreciated!
> >
> > Thanks!
> >
> > Devon Williams
> > Beer Belly Brothers Brewing
> > Watkinsville, GA
> >
> > ooooo
> > |..oo=|
> > |...o |
> > |...| |
> > |...|=|
> > |___|
> >
> > _________________________________________________________________
> >
> >
_________________________________________________________________
| Message 4
Subject: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
From: "Devon Williams"
Date: Tue, 20 Mar 2001 14:54:18 -0500
Thanks Donald. I measured my DO2 today and got a reading of 8.0 ppm at
about 74 deg F. How does that sound???
Devon
>From: Donald Bailey
>Reply-To: aquaponics 'at' townsqr.com
>To: aquaponics 'at' townsqr.com
>Subject: Re: pH, DO, etc...Aquaponics Digest - Mon 03/19/01
>Date: Tue, 20 Mar 2001 08:33:55 -0400
>
>I would agree with Steve. Don't worry about adjusting the pH down.
>When you stock your fish feed them small amounts (1%) for the first 2
>weeks. The fish will produce ammonia and the nitrifying bacteria will
>begin to grow. The nitrification process produces acid and the pH will
>drop. Depending on hardness and alkalinity the drop will be rapid or
>slow. At 26 deg C and pH 7.6 the un-ionized ammonia is only 2.37% of
>the total ammonia-nitrogen. Not too much to worry about.
>After acclimating the biofilter increase your feed amounts to your
>desired input level, either ab libitum or on a fixed feeding schedule.
>
>Donald Bailey
>UVI-AES
>
>We keep our pH between 7.0 and 7.5
> > Message 1:
> > from "Devon Williams"
> >
>Message 1
> >
> > Subject: pH, DO, etc...
> > From: "Devon Williams"
> > Date: Mon, 19 Mar 2001 10:11:59 -0500
> >
> > Hi everyone. Now that I am pretty close to ready with my system, I have
> > been testing the water, and came across a few questions...
> >
> > At what pH level do you keep you water? I am getting conflicting ideas
>on
> > this...some say below 7.6 is best, while others say 8.2 is best.
> >
> > What DO level is appropriate?
> >
> > Do you all measure hardness (carbonate and general), and if so what is
>an
> > appropriate level for this?
> >
> > At what level do you try to keep ammonia? I don't have an ammonia
>reading
> > yet since I have no living creatures adding it to the system, but
>thought
> > I'd ask anyway.
> >
> > Any other tips on appropriate safe readings would be appreciated!
> >
> > Thanks!
> >
> > Devon Williams
> > Beer Belly Brothers Brewing
> > Watkinsville, GA
> >
> > ooooo
> > |..oo=|
> > |...o |
> > |...| |
> > |...|=|
> > |___|
> >
> > _________________________________________________________________
> >
> >
_________________________________________________________________
| Message 5
Subject: Hydra and Micro worms
From: MKern
Date: Tue, 20 Mar 2001 22:00:18 -0800
I had been feeding the Red Claw micro worms, I don't know if that could have
been a problem (mircoworms attacking the crayfish when they molt?), but I
stopped. I also noticed when looking to see some of the Red Claw did not
have the poop strip, that there was a lot of hydra, really big ones, up to
an inch long. I was wondering why the Daphnia that I put in the water did
not last long, now I know why.
Could the hydra be bothering the crayfish, and or stinging them repeatedly
when one of the crayfish molt? They walk around "drunk" some times, I am
not as familiar with hydra, but if the hydra where able to sting a crayfish
after it molted, would that cause the crayfish to be less able to defend
itself and or flee if attacked, or daze the crayfish?
To rid the tank of Hydra, I was considering fluke tabs. Are these more
toxic to crayfish / crustaceans than to fish?
If not fluke tabs, do you know what I could use?
I did isolate a Red Claw after it staggered and seemed sick in the tank. I
noticed while in isolation that the organs at the top of what I would call
the head seemed to be moving much more than the other crayfish. I am not
very good with internal organs of the crayfish, but if they are lungs at the
very top of the bulge by the eyes, then they looked like they were flopping
around. After a while, the crayfish fell over onto its back. I figured it
was dead. Hours later, it was fine and walking around eating. The organs
still moved quite a bit. I put the crayfish back in the tank, and it seems
to be doing fine, I will see in the morning. I don't know if this is
relevant or not.
Thanks in advance.
|
