Give her some time, not all seeds are exactly the same and different phenotypes of a single strain will grow a little differently. Glad to see you’re using a hydro setup. Word to the wise, don’t be afraid of calmag with RO water. This along with sugars and compost tea will really add to your flavor profile. For example I use around 5ml/Gal as part of my mix. Plus or minus depending on your stage and strain. Good luck out there!