Ye mate, one of the reasons I always recommend using separate organic bottled nutrients to fill up the gaps. I think the Biotabs line can work fine (even when solo'd), but some genetics might just need an extra push. And tbh, as a grower you are always trying to find that sweet spot, which means you need to add things to discover her limits. Biotabs and BAC is a golden combination in my opinion!
Indeed
@St. Tom she has been a struggle from the start, probs for not giving up on her! And as you said yourself, she might even surprise you in the end, coming this far I would be a damn shame to cull her, just keep it up a little longer mate!