PURPLE STRAIN - Help

Sup guys good morning from Australia,

So,firstly, im growing this PURPLE#1 strain from DP, does someone have any comments about this strain ? pontecy, taste, smell and colours ?

And it's on 3rd week flowering now and didn't begin to show any colours at all yet, I'm keeping the air con every night now (19 celsius), how much cold shoud I provide to see that beautiful purple ? Or if 19 is ok and I should just wait till late flowering ?

Tks guys, peace ! =D

by day,temperature usually stays at about 29 celsius... I remember reading somewhere that I should give a 10 degrees difference(day to night) to the plants to start seeing colour changes...

My day and night temps fluctuated around 15° and some of my plants started to turn purple. Be careful fluctuating temps though, it can be a stresser.