Purple Pheno or Deficency?

[HomeGrown007]

I dont know the strain of this plant since it was a bag weed seed from a friend. I trained and Vegged for 5 weeks with FIMming, Topping and tie downs. Its now in day 1 week 5 of flower and fan leaves are starting to turn purple. I never grew a purple strain so I dont know if this is a deficiency or a purple strain.

Anyone have any ideas?

Growing in temps of about 75-80 lights on and 68-71 Lights out

I just added a PK booster (MOAB Mother of all blooms) tonite.

Any input would be appreciated

Its the plant in the back right corner, you can see the purpling

 

[spyro]

Just a shot in the dark but it kind of looks like a molybdenum deficiency. But then it could also very well be a different phenotype than the others.

 

[HomeGrown007]

I was hoping it was a different pheno, everything seems healthy... leaves are praying to the light, buds are starting to really stack up and trichs are all over the place... I read it could be a phosphorous deficiency was hoping some others on here might be familiar with this purple effect

 

[Blew Hiller]

I was hoping it was a different pheno, everything seems healthy

Agree it is just a pheno trait...I think you are fine.

 

[Dwight Monk]

Some Strains really change color in Flower, some even start out with purple stems when a seedling even.