For good lushius growth and development of the leaves in the 3rd week of vegging i add the following:1 Tbs Mexican Bat guano,5ml Bio Grow,1/4tsp Soluble Seaweed Extract,5ml Liquid Karma,1/4tsp Epsom salts,add these ingredients to one gallon of water and airstone bubble for 24hrs for best results and feed.Enjoy