Biobizz have all mix listed as 1ml all through with all mix and up to 4ml in light thats 4x the amount just for grow alone
Ive already gave you the link for the feeding chart in my biobizz thread. Also the charts is listed per water not weekly. Biobizz reformulate there npk all the time i just pulled the info from a local hydro shop as an example the point is still valid.
That aside 2 growers have mentioned its N deficiency so i can not see your point i've ran the feed before for a few grows in hot compost. If the media is spongy surely that means its holding lots of air vs John I that sets like a brick?
You can read the plant if there were hot on N they would have a slight curl down if it gives you piece of mind Im not new to the ways of this plant or that brand of feed