Well CrazyCat72, if those two digits refer to what they usually do, then in addition to the Cat part, we share the same birth year.
People can still feel free to pick apart my posts and tell you I am full of shit, won't ruffle my feathers.
So, after seeing you thank me, even though I just jumped in, and said everyone is wrong and I am right and to listen to me, well, the only courteous thing to do now, for you showing that you have an open mind, willing to consider different theories, it is only fair that I least support my claim a bit, so I will.
I have been on the weed forums since the 90's, first grow I was involved with in that decade was a kickass 24" non CFL fluorescent grow of NL#5 using tin foil for reflection. I smile looking back. I still lament both the knowledge base and some of the 'ol timers that were lost after OverGrow went down, and then PlanetGanja (a good source of bucket growing info) followed.
So, this info I claim is not original. It comes from one little post I came across years ago from a respected member of the OG community. I took notice because I had been in a months long tail chase with Ca and pH issues with some bonsai mothers under a 27 watt CFL. Figured, what the hell, give his advice (about peat / perlite 'dirt' mixes) a shot. He also advocated a lower pH range, in general, than most. Shit worked.
So, these pics are from various gardens, various years. You will see 1 week rooted clones under T5's, veg under 400w, 1000w, 6000w 24 bucket RDWC, and plenty of 5 gallon buckets of either hand mixed peat/perlite/vermiculite or a good premix that comes from a nursery supplier - nothing I ever saw in a grow store or general public nursery).
Despite being in different gardens and years, they were all given the same base nute regime (adjusted in strength for the different lights, of course). All of them, all of the different systems, including the 'dirt' plants, that are not in soil, real soil. So you can see how I am not interested in arguing the point with anyone, as you will not see a Ca or Mg issue, nor a pH issue in those plants.
And you won't see a bottle of Cal/Mag, or any other form of the two to 'fix' a deficiency that is really a rootzone pH issue, anywhere in my growroom.
Small three light veg room that fed a (4) 4x4 Ebb & Flow Flower room, each tray had its own thowie and nutreint res. Cuttings rooted, were thrown under 2'x4' T5 for 1 week, up to the 3'x3' tray under a 400 watt for one week, into the 4x4 tray on left and under a thowie for last two weeks of veg. The way that garden cycled, I was harvesting one 4x4 tray from a thowie about every two weeks from that 4 light flower room this veg room fed: