Flushing help

Ok so I am not completely new to the forum I just never posted always read to read up before I post something other people already ask. I don't want to say I am a complete newb to growing but sort of. I am growing a sog closet grow under a 1000 watt hps. The grow is going good yet I still have a small question. It's nirvana nl grow btw fox farm soil mix with nearby garden store soil which had very little nutrients in the soil. Also am using ff trio nute pack. So I made the mistake of transplant my freshly rooted cuttings into the soil and it was all going great and everything looked good but I started adding nutes too soon to the already enriched ff soil. Not that it looked like it was harming the plants but I did have the claw on a few leaves on some plants so I realized I over nuted...which I than tested run off and it was extremely low...around 5. Something ph so I did research and did what I though I would be told to do....flush...flushed definitely enough and the run off was now set at a good 6.5 to 7 and that I added a 1/4 strength water mix in top...only enough to where it started running out the bottom...meaning I did not pour a half gallon of nute mixed water into it...probably a little less..after a day or two three of them started to uniformly turn a pale green with the fan leaves having red veins which I read up as N def...so I mixed a 1/2 strength mix and watered the three with about a 1/3 gallon each...in one gallon pots btw... And the low ph I seemed to think was slowing my growth...at the end of week 6 and the bud production just not seem to be what it's capable of

Now is it just a problem of lack of nutes because of flush and if they do not green up over night should I worry.?

Sorry I forgot to say week 6 in flower

your pH should be around 6.2-6.5 for soil. Leaves will automatically go lighter and start to die as they flower, thats normal

Yes I understand but I believe I'm still atleast 3 weeks till flowering is done. And this sudden loss of color was over a 2 day span after I flushed and re applied nutes...my ph is good thanks I go crazy checking ph on way in and way out

Ok so I guess I sort of know my stuff my lights came on and the three have greened up again...whew thought I almost lost a few

growing can be a roller coaster ride!