i have "plant food" (20-20-20) i read that 15-10-10 is better but is this still ok? also when i feed them should i pour a lot or just a little in my pots.
20-20-20 is fine. Look on the box and use half of what is recommended. Do not pour onto the plants/soil. Measure how much you need and put it in the water and mix it around so that it dissolves in water.