Blueberry Bliss Auto! First grow

The right one was a bit weak from beginning till now, thought they would hermaphrodite but didnt (in my beginner opinion), nothings changed till today This week the temperature starts to get better for indoor growing in germany, temperature in tent is below 28°C most of the time and it only can get better (hopefully) Iam not sure if the red plant stem (even in leafes like on last picture) comes from genetic, phosphorus deficiency, light stress, temperature stress Fertilizer since bloom: bio bizz holy trinity 2ml each on a 1,5l waterbottle and Split 3 bottles between the 2 plants 1x a week