Last week, Chris started a discussion on the pH of coconut bark. I thought it might be interesting to test the pH of a few popular substrates to see if there was any difference. I decided to test a western fir mix that I'm fond of, Mallard Creek Pine Shavings, shredded coconut bark, and water for a control. I soaked 3 grams of each substance in 100 mL of water over the wekend. This morning, I tested the solutions with wide-range pH paper. Here are the results.
Wester Fir Mix - pH = 6-7
Pine - pH = 6-7
Shredded coconut - pH = 5-6
Water - pH = 7-8
No difference in the appearance of any of the solutiuons except for the coconut. The water it was soaking in took on a deep red appearance.
So, as Chris suspected, the coconut was slightly acidic. However, with pH strips, it's always a bit of a judgement call. I might try again with a digital pH meter.
Happy Monday all,
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Mike Lockwood
www.tooscaley.com
