how to cure the energy through fengshui

there are lot of articles & things which can cure a bad energy in a given space.

mirrors
crystals & gemstones
symbols
acquariam & fountains
photos & wall art
laughing buddhas
wealth vase
treasure chest or wealth box
lucky bamboo
live plants
bagua mirrors & map
wind chimes
mystic knot
chinese fengshui coins
animals
fruits
vegetables
flowers
birds
butterfly
colors
shapes