@The_Bearded_Grower, Have you tried GH floralicious plus? I tested it for my current grow and it works like a charm. This organic additive gives me some root issues in DWC but it should work well in your soil system. Highly recommended for your next grow...
Also I found the red poison requires lots of light in the vegetative phase - my first red poison grow gave me lots of foxtail buds due to insufficient light exposure
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