If you are a man, it is recommended to raise 2 white goldfish +7 red ones; If it is a woman, it is recommended to raise 4 white +9 red.
However, your aquarium is too small to keep so many fish. It's too dense. So I suggest you choose the smallest goldfish that is only 2 or 3 centimeters long when you buy it. Or change it to a 90-meter or 1.2-meter middle tube.
As for the location, although it is very particular from the perspective of geomantic omen, other layouts of the room should also be considered. Therefore, it is suggested to consider three points:
First, don't be with the god of wealth and meet the rich; Second, don't go near or face the stove, water can burn the fire; Third, the bottom of the fish tank should not be higher than 4 feet from the ground, which will be disastrous, because people are definitely not 4 feet tall when sitting down.