here was my PM response:
k well heres my thoughts. i use down to earth brand for most of my addtives. and happy frog bat guano. i noticed your different brands have different ratios and may work differently.. some addtives are water soluble and some arent. so i can only really give my opinion on brands that i use. but ill give my thoughts on what you said. (before i forget i order most of my stuff from groworganic.com if u want to order something they have the brands i use for the most part)
the earth worm castings offer a little bit of nitrogen, but they have a really diverse bacteria profile which is beneficial to your soil. humic and fulvic acids are there for helping break down your nutrients in your soil into a usable form for the plant.. so i wouldnt compensate anything, just use what you have.. worm castings the additives dont have to be precise, just use the bag and leave it at that.
bone meal is not organic as fish bone meal is. and as u said its higher in P so its more important for flowering.. the n-p-k is more for a vegging additive at this point.. maybe use a little less of this and the blood meal since itll be a lot more nitrogen.
the bat guano u are using is higher npk ratio than the happy frog which is 0-5-0.. u might want to go a little less.. more is not necessarily better.. different brands of guano work differnetly. if its water soluble it might be meant to use fast and then not have any left for later in flower.. where some guano might break down slowly feeding the plant all thru flower.. if it all breaks down really fast it could cause some burning.. its always best to start with less and then adjust and add more if you think the plant could use it later.. you can always add more, but u cant remove whats already in there.
that mycorrhizal should be ok.. but i know some mycorrhizal is intended for water drenching and some intended for mixing with soil. the one i use is granular and intended for soil mixing as its not water soluble. if the one u are using is water soluble, then i wouldnt add it to the soil, id just add like a tablespoon per galllon of water as u go thru flowering.
alaska humus is not the same as humic acid. humus works as a ph buffer, and it also has a very diverse profile of bacteria that it offers the soil life. u can add a little humic and fulvic acid just in general to the soil, but i just use liquid karma as it takes care of that. dolomite lime also buffers ph, so i wouldnt worry about it. theres another brand of alaska humus called denali gold that would work if u have access to that.
usually powdered things are used up faster than granular things. its just going to be a process of trial and error because u are esentially making your own soil mix with different brands. the good thing about soil additives is most of them are flexible, and its harder to mess up a soil mix than it is to overfeed in bottled nutrients. just be careful with epsom salt espeiclaly, dolomite lime, and the potassium sulfate.. as those are stronger and can cause issues easier than the rest, which the rest you will have some wiggle room.
id say start with less, and adjust as you think things need to be adjusted until u have results to your liking.
as far as the silica powder where did you get that from? i was looking for some and couldnt find any, cant really offer any advice as to how much to use but i considered adding rice hulls to the mix because its a good natural source of silica.
check out groworganic.com they are a great website and not cannabis related, its a legit gardening site so its safe to order things in my opinion. they carry almost every additive i use except happy frog.. but i did email them asking if they could carry it, so maybe they have started recently im not sure.
good luck let me know how things go.
as far as the soil.. just look for a good organic soil mix that has a good diversity of guano, worm castings, humus, perilite, yucca, aloe.. those are things i look for. as i said i think i might experiement with a batch with the dr earth bag of soil it really soudns like a good mix, heres what it has in it:
This Home Grown potting soil is formulated from a fine selection of composted organic materials. This blend is packed full of the organic materials that help your plants become established. Ingredients used are fir bark fines, forest humus, peat moss, perlite, worm castings, bat guano, kelp meal and concentrated seaweed extract. Included is Dr. Earth's exclusive patented technology of ProMoisture Hydrate formulated to keep the biology alive inside the media, thus keeping the intelligence alive. Dr. Earth has also included Probiotic beneficial soil microbes plus mycorrhizae. Now your plants can benefit from the addition of nature's partnership - mycorrhizae - it also has aloe and yucca i believe..
heres the ingredient list of roots organic:
(which i think they call roots original now)
A truly exceptional ready-to-use coco fiber-based potting soil. We begin with the highest quality coco fiber/Coir which is repeatedly washed for low EC, and composted. This soil is amended with organic ingredients including bat guano, earth worm castings, fish bone meal, feather meal, green sand, mycorrihzae, glacial rock dust, soybean meal, humic acid, and many more. Comes in a heavy-duty, ready-to-grow, 1.5 cu ft/10 gal bag; simply poke holes in the bottom, cut off the top, and plant.