how are ppm, ph, affected by the fertilizer that you use

[GORDO]

ppm, ph, tds how are these affected by the type of fertilizer that you use for example 7-7-7, 15-30-15,and so on. From what I can figure out the ppm and tds are the same and for example the ppm goes up if you add more fertilizer per gallon but what about the ph? Does the ph change if you strengthen your mix? Also great site easy to get sidetracked on. And what would be the best kind of fertilizer for a first time hydro grower, would organic teas be easier to control the ph and ppm? FROM GORDO

[Ron]

Yes ppm goes up as fertilizer strength increases. pH will also change so always adjust pH after you add fertilizer.
The cheapest fertilizer is the kind I sell of course. Organic fertilizers are very hard to regulate ppm and ph.