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Yes, they look weak. They look like they have no enough light and no nutrients at all besides already contained in soil... You could grow them on window sill and just water with plain tap water - and you just might get a better result 😇

A lot of this comes down to genetics. Sometimes no matter what you do the genetics will be bad. In this case I think you’re running into both genetic issues and poor husbandry on your part. If you are indeed watering daily you need to stop NOW. Water as needed, likely in your case every 3-4 days. When you water, about 10-20% should run out the bottom of the pot. This prevents the build up of excess nutrients in your soil. Your light should be run to whatever setting gives you roughly 750-900 PPFD at the top of your plants. You can download a PPFD app to figure this out. Lights on autoflowers should be 18 on and 6 off. Your plant genetics looks to be a very heavy leaning Sativa. Which means your plant will be tall and lanky and there is nothing you can really do about it. I hope this helps.

you dont water soil daily, it has to have wet/dry cycle. if light is really 500w, then only weak genetics and bad watering could make them so lanky and stretched, root system too weak, so plants are weak. soil and coco mix is stupidity in my personal view. by feed you almost have nitrogen toxicity, so its not a lack of food.

Not enough fresh nutrients at the root tips.

Check your run of ph (should not exceed 6,5) and adjust it if needed. When you've adjusted pH and you've created the right environment for her roots, give her normal npk because she def needs N (yellowing) and K(purple color on leaves ). Always check pH and ec of your irrigation water

Hi Bro dein Mädel ist total überfüttert die Blätter haben krallen und sind blass was auf eine Stickstoffsperre hinweist. Du gibst ihr zwar alles aber sie kann es nicht aufnehmen. Am besten nur Wasser geben mit genügend Abfluss die nächsten 2-3 mal. Viel Glück und Erfolg 👍