Wow, that's a lot going on! You say you're a hydro grower in coco, yet speak of humics, castings, beneficials, etc, which is more of an organic soil thing. Seems like you're playing both ends of the spectrum, which is unnecessary. I like Mr Miyagi's quote:
"Daniel-san, walk on road. Walk right side safe. Walk left side safe. Walk middle, sooner or later, get squish, just like grape."
Mega Crop is a complete nutrient. It has all the necessary macro and micro nutrients in it for plant growth. Myself, I like to add more silica than Mega provides, and I dabble with a bit of cal mag. Silica does increase the pH of your solution a lot. Some of the hydro guys find they can't use more than 1ml per gallon without having to use large amounts of pH down to get to their desired 5.8-6.0. In a buffered media, I can go up to 5ml per gallon with no issue.
As for increasing P&K in flowering, there is no scientific evidence showing the plants ratio of elements required changes that dramatically. The plant is hungrier and requires more fertilizer, but uses the elements in roughly the same ratios as it did in it's growth phase. The notion of switching feeds is more of a marketing ploy to get you to buy more products, and years of "stoner wisdom". Think for a moment, in nature, do the clouds open up and rain extra Potassium and Phosphorus in the late summer and fall? Or does the soil magically change composition? They do not. The first several pages of this thread spells it out more and gives references.
In the smaller tent (32"x32"),currently flowering autos, I am using a VS XS2000. The 36"x36" tent sports a custom built 300w strip light using Bridgelux 3500, 2ft strips.
thanks for the informative reply dude. ud cry at my old line, 6 years ive run advanced nutrients, mastered them and worked my yields led to 1.9gpw and hps 0.7-1gpw unless i do my hydro system. then shit goes nuts,
i run 2 systems my bad there, atm i have
1200w 3030 led room - rdwc 250litres 5000lph.
1200watt hps room -coco drain to waste system airpots,
when i used advanced nutes til now this was my lineup
grow a
grow b £69 a pair
advance b vit £23
advanced voodo £25
advanced nirvana £25
bloom a
bloom b 69 a pair
big bud £25 x2 or 4 in hydro
bud candy £25x2 or 4 in hydro
nirvana £25
rhinoskin £39
xfactor £60
overdrive £35
flawless finnish £20
since seeing results of using beneficials, i tested for years i started adding bennies and dechlorinated water,
to increase their effecitve ability i brew teas ,
earth castings,
3 beneficials i have which contain humic and kelp too,
il use mollasses or if not botanicare tea to boost sugars and food for bennies,
i add fulvic acids pure to chelate and a number of other reasons,
aloe has enzymes and alot fo properties i love its a wetting agent if foilar
and recently i was gona go to sumo nutes for the trianacol pgr organic results look mad allround in agriculture then i found out if i grow a handful alfalfa in my teas ive got it.. (all this is basicly nirvana/voodoo/budcandy in 1 and made by me brewed)
but while small or in veg i have an organic stimulator which is growth hormones and micro nutes, its for me cuts but i spray the plants with it also as its a tonic and small as hella u can soak seeds in it neat, soi just use the same bottle to spray them,
i have silica its new to me, silicablast, grow shop sent me it as a replacement for stock didnt have
so i brew my teas and innoculate weekly thats all really,
i dropped advanced but i am doing a comparison to MC 4 v4 under 600w predetor pannels coco DTW 1 hr feeds
to see difference in using cheap salts
to me MC and salts seemed too good to be true as ive always been told..if it is...then.. but it seems to be true lol instead of 400+ a grow its now 100 over 5 grows in total all in i am scared my yield will be less after a few comments seen..but but i duno if that was all to the 1 part.
i hope lol, i never hit less than 35 with advanced in my tent, so if i can do that minimum id be happy my best was 51 and that swas when i used my bennie teas
since then im a steady 35 to 45 with no effort just a massive hole in my pocket,
but if mc can replace my 10 bottles for a fraction of the price and still yeild the same thats great,
i cant get my head around not using boosters lol it kils me i feel like my tanks empty haha espeshly mixing a clear and not black haha
now i wana do MC ofc but i love my bennie tea, so i was going to incorperate that aswel, ive seen peep saying MC lacks micro nutes and elements are low values after the npk, so i guessed my teas shoudl replenish whats missing.but alot of info is based on the old MC 1 part, and im using 5 12 26 lol.