Is it okay to keep Feng Shui fish mixed?

If Feng Shui fish are mixed, the number of Feng Shui fish should be raised

One fish - one white water, can bring wealth.

Two fishes - two black soils overcome water, which is bad for wealth.

Three fishes and three green trees release water, which is bad for wealth.

Four fishes - four green waters, although water is released, the four greens are Wenqu stars, which is auspicious.

Five fishes - five yellow soils overcome water, which is not good for wealth.

Six fishes - six platinums generate water, which is good for wealth.

Seven fishes - seven red golds generate water. Although they are evil stars, they have the feeling of mutual support and are considered auspicious.