You can get CSM+b from rexgrigg.com or greenleafaquariums.com It's a powder that you can just dump in.
You say that as if you don't like making smoke bombs anymore. How could that become less fun?ok so i bought the 4 ounce bottle of nutrients (its called Plant Gro by nutrafin). it doesnt have potassium or phosphorous. but i just read somewhere that i can use potassium nitrate for a potassium source and realized that i have a huge bottle of that stuff from when i liked making smoke bombs. could i add a bit of that to my bottle of fertilizer or is that just crazy? does regular fish food add potasium and phosphorous when it decays? should i even care?