hello and welcome to week 3 day 1
plant is growing very bushy. But some signs of phosphorous deficiency start to show at lowest leaves. tap water here is rich in carbonates, pH 8.
seems Like cannaterra soil which is used does not compensate ph value as good as biobizz allmix which i used for other grows.
i flushed plant with pH 6-6.5 water (adjusted with citric acid)
I also topped the plant.
Week 3 day 5
Thanks to @biotab for the help.
Seems Like my plant did Not have phosphorous deficiency but got burned by to much light. After the Hint i adjusted the light Setting And the Signs of phosphorous deficiency disapeared.
Topping Seems to be successfully.
Its no defiency or overdose on Nutreients what you see. its to much light/ to close light
you see it in the internodial spacing.
plant is dwarfing under the light, and got a lightburn.
dimm back your light to 100 watts or double at least the distance of light.
if yu are giving so much light the plant cant handle it in this setting
if you want to go all in you have to use another medium and daily low dosage feedings
if you grow in soil dimm back the light.
the damage will be visible in the next 2 weeks completety. if you dimm back, the plant will stretch more, and grow lovely new leaves. the old damage will stay.
( dimm back to 50 prcent// or go to 70 cm)👈then your plant will look happy again