> 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,
> 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
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.