Veg + bloom dry nutrients

yep, painters use it as well.
Nothing special about it.
A price for around 5 or 6 €, £ or $ is very common for a liter. If you buy only 1 liter it might be more.

Rhino Skin, Aptus Regulator, GH Armor Si... all overpriced. Although Armor Si not that much, but still.

I've been using ff trio of course unsulfured molasses bembe sweet and dandy superthrive and finished with flowerstacker and I will say for my 1st few plants I'm getting high quality and I've only flowered my bagseeds but these new plants e feminized seeds 00 seeds dos si dos cookies,skunk and northern lights and I'm highly impressed in what I'm doing I think I'm realizing after this post it has nothing to do with the levels of nuts it's forming a relationship with the plants they will let you know what they need there leaves speak to you and let you know this weed here been smoking heavy for 28 years some of the best I've ever smoked and I've been smoking dro dro for 20 years straight