Place some crystal soil (mine is pink and white) and add water to it. Ratio is like 1:60 and you have to soak in water for a few hours. Just drain out the excess water if you feel like it's 100% complete.
And now, it's time for the magic bean. I got it for RM 1 at Sunway Pyramid. For the crystal soil, it's RM 3.90 per packet.