i know i should know this by now but

ok i know i should know this by now but i just can't find it on the net
i am on day 47 of flowering my plants i think they are northern light
i wanted to know if there is any way to tell when to start flushing with plain ph'ed water for the last 2 weeks?
all the trics at the moment are clear

heres a pic


and i harvest when the trics are 50/50 cream/amber yes?

i was going to start flushing them next watering what do you think

i think that plant looks like it could go a while longer, majority of the pistils are still white... but anywhoo yes, when the tricomes change from clear to milky and then a darker amber color you should be ready. patience is key!

so should i leave flushing for a week or two?

i would, they look like they havent even fattened up yet... i was planning on harvesting my first grow at 8 weeks but ended up going 10.5 and im glad i waited

what you using for light?

i have 3 lights in the 90cmx90cm tent
1 150w hps
1 125w envirolight flowering cfl
1 150w mh
all running 12/12
i have cocked up this grow a bit i won't go into it here but if you read my journal (linked at the bottom ) it might give you a better idea of my set up

If you know the flowering time from the breeder that is the first place to start. Just count back 2 weeks and flush at that point. IE they say it is done in 58 days, you should start the flush 14 days prior or on day 44. But know its only a guide some seed companies will have low flower times to sell more seeds ive had seed that should take 7-8 weeks go for 9-10. If you dont know then watch the trics close and start to flush when you start to see amber trics.