1, round fish tank, the five elements belong to gold, which can produce flourishing water, so it is an auspicious symbol.
2, rectangular fish tank, five elements of wood, although the release of water vapor, but the two are related, can also be used.
3, square fish tank, the five elements belong to the soil, the soil can grams of water, there is restraint, so it is not appropriate to choose a fish tank with five elements of soil.
4, hexagonal fish tank, with six as the water number, so the five elements belong to water and can be used.
5, triangular or octagonal or even polygonal fish tanks, the five elements belong to fire, and the fire and water are complicated, which is not suitable for the layout of wealth.