soil,ph question

i just transplanted with sum new soil cause she had problems i think i fed to much nutes and the ph was all wrong and she was dieing.so i transplanted to jungle growth professional flower & vegeatable mix 0.20-0.22-0.20

my question is how long do u think these nutes will last in the soil if i just keep feeding her bottle water

also right after transfer i tested the soil and it was already like 5-6 is this normal and if i just keep giving her bottle water will the ph go up or down

also how do i test the ph on my water/feed mix before i water her
i have a cheap ph pen for the soil but dnt know how to check the water

and what kindof of ph up & down do i us the only kind i see at the stores is for pool water and im not sure if its alright to us..

if anyone could please help me with any of the questions

come on sumbody has to have sum kind of input on atleast one of those questions

HI, am i glad you asked that coz i wanna repot myself but a bit worried bout the nutes in the new compo, I've seen also that there are usually enough nutes in most grow medium to last for bout three weeks, but as im into 2 weeks flower i dont know if it will set the plants back coz of the different nutes so i'll keep looking on this to see whats said if u dont mind, Also i'm using dutchmaster gold grow 18/6 and then flower 12/12 both started 7ml now up to 10ml per 2litres. I mix mine in a bowl then put my ph tester in the bowl but i use ph in the soil also and it comes up with the readings to. Happy Growin.

ya im goi into 4 weeks of flowering but the way i look at it is i have no choice either leave it in the old soil and let it burn to death or take my chances repotting it with new soil....

i read all these other post and people r helping people everywhere
but no one seems to chime in and help much when i ask questions so posting my pic and question is pointless...

somebody on here has got to have sumthing to say about my questions..PLEASE ANYONE