I purchased this cactus and it's growing fine but has a white powder like matter. I did use some diluted peroxide a few months back but I'm seeing it again. I irritated some of the outer flesh using this but not enough to worry myself over. Take a look...I'll try and get a good picture.
gdmk added on March 16, 2016 | Answered
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Answered on March 16, 2016
Anyone know what I should do?
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