Quick question about water types, ph, ph runoffs for babies/moms

Ihave a quick Q, what ph water should I be feeding my 3 inch rooted clones?they're in 16 ounce cups in happy frog soil, also what should the ph runoff be?

Also, can I use tap water from the faucet in my house? If not what can I do to be able to use tap water? Let it sit for a while in open containers so it can evaporate a little bit? How long to leave it like that?

Also what ph wTer should I be feeding my 3ft moms?

Is runoff PH more important thAn the ph of the water before it goes into the soil? I trNsplanted my 3in clones 3-4 days ago from rockwool cubes into the happyfrog soil and I haven't seen any or very little growth and some of the fan leAves are yellowing, they are under t5's and are within 2-4in away from the bulb, temp is low 70/high60's and they had substantial roots before I transplanted them in soil. Are they just in transplant shock?

Sorry for all the typos I'm on my phone and it's difficult to type

SoMeone pleAse help!! Thanks GUYs! Very very much appreciated.

Someone please help!

should be 5.8 to 6.8 ph

Of course your plants are stressed from being transplanted. Give them a week or so, they'll get back. pH is more tricky, and in my own opinion it works better to gain as much knowledge as possible about which factors bring pH up, and what brings it down - rather than measure every day, and add and subtract in an attempt to nail it, at a specific value, using expensive chemicals on top.

Anything in an organic medium, will fluctuate it's pH, and to try to force it to a certain level, may not work. If you let time help you - measure less frequently, and make adjustments based on your understanding of what goes on - you might have better luck.

I would think most issues related to pH balance, derives from over-fertilisation. In an attempt to 'do the best for the baby' one might want to throw a spoonful of fertilizer - but if the plant is only one inch tall - it's probably too much.

Although I personally don't believe the chlorine in the water is of much of an issue to the plants, an easy way to get rid of it, is just to let it sit without cover overnight. You can stir it, to speed it up.
The notion that you will achieve killer results, if you can just NAIL the pH, I believe to be exaggerated.
It's one out of many factors, and in a properly balanced system - the pH will tend to balance itself.