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Depends on what you want and at what time. I use FF Peace of Mind series in vegt and Indonesion and Peruvian in flower. Along with Wormcastings, Dried Kelp and some others. Like I said Depends on what you are looking for. You could put crab meal, fish meal, greensand, rock phosphate, granit dust, compost (most important) loamy sand, alfalfa meal and the list goes on. What do you have that you could use in your area? Make a list and tell us what you want to do and for how long.