North Wales Koi Club Forum

Hi,
This is a question only you can answer (honestly)
How many of you test your pond water pH and how often?
There is evidence this year a lot of ponds pH have been slipping into the acidic danger zone i,e, below pH 7. Not only is this bad for your koi's health and growth, it does not help filters maintain their biological action, and also can inhibit them from maturing.
A mature pond and filter system will eventually start to go more acidic, due to nitric acid being produced from the nitrogen cycle, once all the carbonates have been used up, the pH will crash and this can happen overnight!!!!.
So check your pH soon.

Dave.

I run a continuous readout pH probe shows the tiniest of fluctuations. Very handy piece of kit

Hi,
Thats a great idea, how often do you check the calibration?
Is it supplied with buffer solutions to check?

re calibrate every two months - the calibration fluid is available from local aquarist shops for a couple of quid.

Sounds good, where do you get them?
Could do with one for the winter.

Here you go Dave -go to ebay and search this number
270281011973
or try this link
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 26_fvi%3D1
I currently use this one with no problems - have tried the cheaper ones but very iffy
Cheers
Richard