I think your temps are a little on the high side as well as ph 7 for coco is also pushing the threshold. All the best!!
Keep em popping
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Hey there,
Thanks so much for running a diary of our Blackberry ๐
Let us know if you need any assistance, weโre more than happy to help.
Happy Growing !!! ๐ฑโ๏ธ๐ด๐๐ฟ๐ณ