So, I bought this inexpensive kit from Amazon.
It's a cheapo for sure but hopefully some of it works. I stopped testing for ph after my 4th pen stopped working properly. I've been flying blind for years now with reasonable results but I get leaf yellowing about 7 weeks into flowering which I believe is causing reduced yields. It'll be here in a couple of days. I'll give my initial thoughts when it arrives.
It's a cheapo for sure but hopefully some of it works. I stopped testing for ph after my 4th pen stopped working properly. I've been flying blind for years now with reasonable results but I get leaf yellowing about 7 weeks into flowering which I believe is causing reduced yields. It'll be here in a couple of days. I'll give my initial thoughts when it arrives.
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