yeah bottled powder as above humic ,fish i use grd dry anchovie/sarden (no smell ) kelp meal that I extract with enzymes & LAB , you can make gallons & gallons for $100 bucks of these dry powders
https://www.amazon.com/gp/product/B002LUAL8S/ref=oh_aui_detailpage_o03_s02?ie=UTF8&psc=1...