Pond Ph. Drop

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Pond Ph. Drop

Post by Jerry Shor » Sun, 22 Dec 1996 04:00:00



Hi all.

I have a 1500 gal Koi pond that has been up and running since early May.
The Ph. has been steady at 7.0 (the same as the treated tap water I top
up with after cleaning filters etc.) until 6-8 weeks ago when it started
dropping and is now down to 6.0. I'm putting this drop down to the very
heavy rain we have been having. Do you think this is correct or could it
be something else ?. Do I need to raise the Ph. back up and if so what
is the best way to do this ?.

Any advice would be appreciated,
TIA.
  Jerry.
--
  Jerry Short                                Hambleton

 
 
 

Pond Ph. Drop

Post by Roxanne Jeko » Fri, 27 Dec 1996 04:00:00


Quote:

> Hi all.

> I have a 1500 gal Koi pond that has been up and running since early May.
> The Ph. has been steady at 7.0 (the same as the treated tap water I top
> up with after cleaning filters etc.) until 6-8 weeks ago when it started
> dropping and is now down to 6.0. I'm putting this drop down to the very
> heavy rain we have been having. Do you think this is correct or could it
> be something else ?. Do I need to raise the Ph. back up and if so what
> is the best way to do this ?.

> Any advice would be appreciated,
> TIA.
>   Jerry.
> --
>   Jerry Short                                Hambleton


Hi Jerry!  Unless you are seeing signs of stress from your fish, I would
allow the pond to stabilize the pH by itself.  pH shifts can be very
detrimental to your fish and once you start messing with it yourself,
you could find yourself in serious trouble with unexpected results.  pH
up, then pH Down, and on and on and on....all the while the fish are in
trouble...

Most ponds will eventually begin to drop in pH levels as they age, it's
a pretty natural occurrence.  As long as the fish don't mind, I would
leave it be.  

Roxanne :-)

 
 
 

Pond Ph. Drop

Post by Permaclt » Sat, 04 Jan 1997 04:00:00


Quote:

> Hi all.

> I have a 1500 gal Koi pond that has been up and running since early May.
> The Ph. has been steady at 7.0 (the same as the treated tap water I top
> up with after cleaning filters etc.) until 6-8 weeks ago when it started
> dropping and is now down to 6.0. I'm putting this drop down to the very
> heavy rain we have been having. Do you think this is correct or could it
> be something else ?. Do I need to raise the Ph. back up and if so what
> is the best way to do this ?.

> Any advice would be appreciated,
> TIA.
>   Jerry.
> --
>   Jerry Short                                Hambleton


Jerry:

Your pond pH drop could be due to acid rain, also.  In which case it can
keep dropping and dropping until you approach the pH of the rain in the UK
which is frighteningly low.  You may want to apply some shell or large
chunks of limestone to gradually buffer the pH.  This will also make some
of the heavy metals in your rain insoluble.

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