Need your help seriously...

Ok so I'm new to trying coco fiber...
What should ph be as far as going in and coming out?
Mine go in w nutes at 5.0 range and come out 6.5 to 7.0 range.
Another question is if you underfed for awhile and you got it bumped up will the light green yellowing get darker again?

Sorry pretty new to coco didn't wanna lower ph to under 5.0 going in and not sure if 7.0 coming out is good. I use a liquid tester tho my ph meter broke... But it's orange in light green out. Not that I'm seeing problems yet but I'd like to know... Well other than the light green new growth but that's cuz I was watering once a day w nutes and next day plain water. So I do nutes everyday I was trying the h3ad version of Lucas. + rep for any and all advice! Thanks riu

Probably a touch low but try not to change it to much at once do you have a nutrient meter? cos i fiend you have to get things pretty wright with coco thats why i don't use it
I go for NFT and allmix bio

I'm using bcuzz it's almost soil like. And yes I use a truncheon my ec is normally at 1.4. Jus no clue what the proper way to test it is... I'm used to hydro n u just test the water straight up...

Test the ph that is*