Purple tips?

[MasterDsKush]

I think this is a ph problem i water from 6.3 to 6.5 but i just don’t know to go up or down and the plant is doing so well run off usually comes out 6.3-6.5 to.. I’m using bio bizz grow half tsp/ bio bizz heaven 1/4 tsp / 1.5 tsp bio bizz bloom

 

[Miked1988]

It could be the strain.. I’ve ran the same strains next to each other (purplish colored strains) some came out all green some half and half and some all purple.. when ever they started to turn purple it would most of the time start at the tips and makes its way up the leaves.. could be cold temperatures too? Other than that they look healthy to me

 

[Miked1988]

Oh and I’ve also had the same strains leaves turn all yellow during late flower and purple start forming on the yellow leave ? Now if that happens it could be the strain or a couple variety of things

 

[BurnzYzBudZz]

I think this is a ph problem i water from 6.3 to 6.5 but i just don’t know to go up or down and the plant is doing so well run off usually comes out 6.3-6.5 to.. I’m using bio bizz grow half tsp/ bio bizz heaven 1/4 tsp / 1.5 tsp bio bizz bloom

Prolly the strain. Here’s my outdoor platinum widow. No nutes, all sun.

 

[MasterDsKush]

Prolly the strain. Here’s my outdoor platinum widow. No nutes, all sun.

Ya think this one might be the strain but it’s on all my plants

 

[Jimster]

How are your night time temps? If they get cool, that can help to trigger the purple coloring. It is not uncommon and is just the colors showing thru the green chlorophyll, like tree's leaves in fall.