How to use high concentration nutes?

[DaTrueWhiteMa]

My flowering nutes are NPK 20-40-40,just got them,1000w hps,gave them only once,about 60% of the dose,week 3,8 week veg,what dose should I use? it was like 600-700PPM (~14-26-26) How often would you water 5 gal pots with these nutes? I was thinking going twice a week with full dose would be too much no?

 

[blackhole]

I feed feed water feed feed water but wait to do so until pot is light and pretty dry
plant tells you how often in needs to be watered you cant just decide on twice a week
on mine there in 5 g pot 40 inches high water about ever 5 days