The most famous feng shui wealth fish is the arowana, or dragon fish, and the purest arowanas are known to command quite high fees. However, the koi, or gold fish, are just as effective, as well as a pleasure to look at. Go for 8 or 9 fish, one of them being black color. Aquariums are auspicious because they bring a harmonious combination of several wealth attracting feng shui factors.
Pretending your space has good energy by hanging chimes and crystals just does not work; it is a false (and naive) cover up. So, focus on creating a genuinely strong, healthy and solid foundation, and then apply the wealth and money feng shui tips and cures that truly speak to you. Always choose the wealth feng shui cures that make sense in your home or office; a three legged frog in a modern house may look absolutely ridiculous (unless it has deep meaning to you); and it will sure not work to attract wealth.
Feng shui is a little like astrology. Whether you actually believe in it (or not), learning its inner workings and understanding how it can impact your everyday life is somewhat fascinating. Whether we're talking new moons and planet alignments or bedroom colors and under-bed storage, the link between environment and energy is an abstract concept—but that doesn't mean that its concrete implications in everyday life need to be confusing as well.
Historically, feng shui was widely used to orient buildings—often spiritually significant structures such as tombs, but also dwellings and other structures—in an auspicious manner. Depending on the particular style of feng shui being used, an auspicious site could be determined by reference to local features such as bodies of water, or stars or the compass.