First grow ?

I understand that the fear of overfertilization (as you can read that very often) can be so high that people under-fertilize.. honestly, it's even better to under-fertilize a little than to give too many, as it's easier to recover, however i would still say it's best to not under-fertilize either, as this can stun the growth of the plant. after all she's not getting enough food. It's good to hear that you have picked it up, and that the new growth is green. As mentioned, just don't try to over-compensate and give too much. Nute burn you'd usually see by the leaves going dark green, and then the tips of the leaves start turning brown and wilting off (because the plant can't move the nutrients any further, but they're too many to utilize). You mentioned you're using canna coco, but are you also growing in coco? or is this soil? In either way, i would suggest investing in an EC meter to measure the strength of the nutrients and then feed according to that. Here's an article that has helped me understand a lot about it and since measuring what i feed the plants (as well as what they take up), i haven't had any feeding issues anymore: https://www.mandalaseeds.com/Guides/Fertilizing-Smart-Guide (That goes also for my hydroponic chili peppers, so not only for cannabis ;))

Thanks for the replies, I have got watering my flower perfect, going with the dry wet watering, I lift pot and when she feels empty ill give her a feed, with the nutrients I was so worried about given her nute burn I gave little to none, after reading your replys I'm excited there is still hope, the last 24 hours I have seen a huge growth, New leafs growing in green, I'm using canna coco a and b all I hope now is I haven't given nute burn but time will tell

She looks a bit yellow, but it might be the flash.. Just provide her some nutrients and don't try to over-compensate for the earlier lack of nutrients or this can shock her .. Veg-based nutrients with Nitrogen should help for the time being, but don't get your hopes up that the yellowing leaves will turn a deeper green again.. just focus on how the new growth looks like (which seems to be greener already) and leave the old ones be.. they don't look too bad.. happy growing :)

Hello.. Hope you are well.. Just give her a feed of nitrogen based diet n she will b fine in 3-5days u will see major improvement.. Maybe add a little root stim if u av any.. Make sure ur ph is @6-6.5..cannabis is a strong plant.. Ur yeilds mite lack in comparison to ur usual harvest but she will still bounce bk in few days.. Stay safe n gud luck.. 👍🍀