Grow Mediums gh flora when to switch to bloom mix

[sa new grower]

HI all im havin fun with my first hydro auto grow have some 2fast2vast in perl/verm mix using gh 3 part plants are about 5 wks old with preflowers showing at the tops would it be about the right time to move to the bloom ratios ?

 

[IndicaIVoz]

I like to wait until the plant is properly blooming before switching to bloom. At preflower theres quite a lot of stretch left this is where the plant will double in size or greater she may need the extra nitrogen.

 

[HotBunz]

I know I am a little late to the party but here is my 2 cents. I too grow with GH FLORA 3 part. You should be using all 3 pretty much from the get go. I would have to look at my files but I think my last couple of grows BLOOM was in the mix by day 10-14. I STOP using the GRO around day 20-25. The MICRO is so so nitrogen heavy you just don't need the GRO any further. I then start bumping up the BLOOM around day 30'ish depending on when the plant started pre flower.

 

[IndicaIVoz]

just wanted to say what a lovely GC you grew @HotBunz ! im growing four now hopefully will be as nice as yours but id take worse haha top top top work!!