New growth leaves are twirling

[someonestranger]

Hey guys
Strawberry banana fastbud auto
~30 days old
Spider farmer sf 1000- 100 watt more than 1 meter away
Biobizz soil 70 % all mix and 30% light mix.

Biobizz nutrients ( I'm feeding everything the biobizz all mix schedule says the half amount per 1,5 L instead of 1.)
+ 0,25 ml cal mag per 1,5 L

Using tap water ...
I am feeding every watering and I'm watering every 3-5 days...
pH is 6-7 using strips ( not accurate )

Temperature was 30celcius at the beginning for 2 weeks and went down to 26-27 at the moment.
Humidity is around 40-55..

Anyone knows what's wrong with that lady,
I checked today the runoff ph and was around 6-7 because I was thinking it's a pH problem ?
Could be the heat at the beginning of grow ?
Should I flush next watering ?
I don't know what to do

 

[namvet25]

I really dont see any problem wth the leaves and no need to flush.Pistols are looking good so she should start stretching soon,

 

[TheFerret]

I've seen new leaves do all sorts of things with fans and lights, etc. I agree with @namvet25 they look okay to me.