I gave them the way to the answer. If you're too lazy to look that's not my problem.
Wow for a person who seems to knows so little about the topic you sure being awfully toxic in your replies.
The answer is not so easy as you would have it be as the question is likely not being interpreted as your limited knowledge is causing you to interpret it. At low temps ammonium nitrogen is typically taken up in larger amounts than nitrate. This means the roots discharge H+ protons into the reservoir so as to maintain and ionic balance in the plants roots. This means low temps will cause a declining pH that can be very dramatic. At high temps nitrate is taken up in larger proportions leading to the roots discharging carbonate ions that cause a rise in pH that can be dramatic.
Now consider he made no reference to any other changes such as nutrient concentrates or changing nutrient formulations. Then co sider the fact that temperature effects uptake efficiencies as well. then consider you nor anyone else whether he is using organic or inorganic fertilizer. Organic fertilizers run a different pH at different temps as the reservoir bacterial levels change in relation to temperatures. This effects the pH.
So in that respect your quite likely just talking trash and making bad suggestions by thinking goggle scholar is providing a better answer to pH problems specific to hydroponic growing pH problems than can be supplied by knowledgeable mj growers rather than inexperienced growers using goggle and likely asking an irrelevant questions. If you ask the wrong question you will get the wrong answer. You pretty likely asked the wrong question Dude.
Sorry Knickers but your advice and opinions might very well be worthless to mj growers. It is the result of
growing at lower reservoir temps that are likely effecting the reservoir pH problems,
not that pH "readings" are effected to a small degree by solution temps.
It is as simple as, don't bother asking goggle a question unless you are knowledgable enough to ask the right question Dude.
There was a period of over 36 hours witout an answer to the thread starters question after his clarifying the original questionm, which seemed simple even in its original form. I posted and answer without having read the second page of replies and his clarified question. What is up guys. It is knowledge I have posted repeatedly so it should be well known information already. It is information widely distributed in scientific lierature I have previously posted links to. I had to almost beat it into Uncle Bens thick head in the old Scientific Nutrient thead. It is easy to understand. It is the basic ground work for buffering in hydroponic nutrients.