Sorry ran out of time to edit, for a more accurate list of ingredients of iguana juice without them being so vague:
Krill extract, yeast extract, yuca extract, kelp meal, alfalfa extract, worm castings, volcanic ash, bat and sea birds guano, fish meal. That contains an insane ammount of vitamins, minerals and other things that you wont see in the label.
And in case youre curious, my custom soil is: 20% perlite, 15% expanded clay and clay colloids (microscopic size clay), 45% peat, 20% coco.
With these dry ammendments mixed in: Leonardite, worm castings, bat guano, feather meal, bone meal, volcanic ash, kelp meal, neem meal, dolomite lime. I dont add epsom salts cause they are water soluble and I prefeer to use them while feeding as I see fit.
What I top with: not much really,
diatomaceous earth if I see gnats otherwise I feed liquid silica and worm castings if I have extra from the previous mix. Otherwise the liquids Im using from AN have plenty of humic and fulvic acids anyway.
EDIT: Expanded clay is also another great house for your microorganisms, and expanded clay and clay colloids are nutrient buffers aswell.
Diatomaceous earth I use only when gnats pressent because it has alumina( 2-4%), if your ph goes below 4,5 (in case of an accident) it will become water soluble and get in the plant, and its toxic for them and for you. I trust my capabilities to not go below 6,0 and closer to 6,5 in late flower but its something to keep in mind.