How to prepare pH 4 and 7 buffers from scratch without using a pH meter
I wrote a post in the past about how you could prepare pH buffers in order to calibrate your pH meter if you happen to already have a calibrated pH…
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Understanding the carbonic acid/bicarbonate buffer in hydroponics
I have written several articles before about pH and it’s importance in hydroponic culture (1, 2, 3, 4). However I have yet to write a detailed explanation of one of…
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A guide to different pH down options in hydroponics
The control of pH in hydroponic nutrient solutions is important. Plants will tend to increase the pH of solutions in most cases – as nitrate uptake tends to dominate over…
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Preparing your own buffer solutions for pH calibration
If you are interested in learning how to prepare buffers without needing a previously calibrated pH probe, please read this post. One of the most common tasks that hydroponics growers…
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