Sour Diesel

Hello growers, Day 106 from seed and she is really taking her time. Made an error last week mixing up her feeding tank and accidentally gave her fish water that had not been PH down to the correct levels. Noticed burning on her upper leaves now. Top of the colas have started to add and around 1cm of new height on the buds . Other than that she seems to be going ok. Getting closer to harvest day (20 days or so )