Is it okay to face the amethyst hole in the fish tank?

Of course. Amethyst cave can face the fish tank, and really amethyst does not change color. Amethyst, also known as wisdom crystal and geomantic stone. The amethyst cave facing the fish tank symbolizes the main attraction to attract noble people, enhance career and academic luck, and develop wisdom, which is deeply loved by the test party and the working party. Amethys in English is composed of silicon dioxide (SiO2 _ 2) and belongs to ternary system, with hardness of 7, specific gravity of 2,65 and refractive index of 1, 54- 1, 55.