well water ph, filtering. fertilizers

[early]

I have a dozen phals, and flushed 8 non-bloomers with well water that has a ph greater than 8. I want to fertilize today and plan to use bottled drinking water that has a ph lower than 7. Is it possible to lower the well water with citric acid to lower it to 6.5 to 7+ and not harm my phals? will 3 or more flushes weekly with well water that alkaline harm the phals? I have all of them in clear plastic and I pore off all the water. They are all in S/H and so far the roots seem fine. Leaves are green and firm so none seem sick. I will wait for a reply on the PH I need to use next week.

second question--I have used both 30-10-10 and 20-20-20. In general, which one or a different balance is better for all phals, which seem to be doing well. And which balance is better for the 4 bloomers I have and do non-bloomers need a different balance?

---------- Post added at 12:04 PM ---------- Previous post was at 11:59 AM ----------

forgot to say, I flushed yesterday all my phals and poured off the well water, so I can fertilize today (weakly)