Wats wrong with my plant??

[Ledgrownewby]

Hey its my second grow and im 4 weak of flower the plants needs 3-4 weak more to finish .its powerplant .
Bud im not sure if i have a cal/mag problem .
I use plagron growmix soil 7,5 l gallon
Nutrients i use hypro Terra / hypro Epic / hypro rootstimulator
Ph 6,0 -6,3
Ec is 1,6
And my english is very bad i hope it work for some one:)

 

[TripsRabbit]

Temperature 21-20° C?

 

[Ledgrownewby]

Hey tripsrabbid thanks for checking my post!
Day temp 25-28
Night temp 19-22
I had some days 16-19 at night maybe this will cause the lila colors??

 

[chemistry]

Can you put up a pic of the whole plant/plants.

 

[Ledgrownewby]

Can you put up a pic of the whole plant/plants.